[apops] Cisco Security Advisory: Cisco IOS Software Tunnels Vulnerabilit

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  • Subject: [apops] Cisco Security Advisory: Cisco IOS Software Tunnels Vulnerability
  • From: Cisco Systems Product Security Incident Response Team <psirt at cisco dot com>
  • Date: Wed, 23 Sep 2009 12:15:00 -0400
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      Cisco Security Advisory: Cisco IOS Software Tunnels Vulnerability
      
      Advisory ID: cisco-sa-20090923-tunnels
      
      Revision 1.0
      
      For Public Release 2009 September 23
      
      +---------------------------------------------------------------------
      
      Summary
      =======
      
      Cisco devices running affected versions of Cisco IOS Software are
      vulnerable to a denial of service (DoS) attack if configured for IP
      tunnels and Cisco Express Forwarding.
      
      Cisco has released free software updates that address this
      vulnerability.
      
      This advisory is posted at:
      
      http://www.cisco.com/warp/public/707/cisco-sa-20090923-tunnels.shtml
      
      Note: The September 23, 2009, Cisco IOS Security Advisory bundled
      publication includes eleven Security Advisories. Ten of the
      advisories address vulnerabilities in Cisco IOS Software, and one
      advisory addresses a vulnerability in Cisco Unified Communications
      Manager. Each advisory lists the releases that correct the
      vulnerability or vulnerabilities detailed in the advisory. The
      following table lists releases that correct all Cisco IOS Software
      vulnerabilities that have been published on September 23, 2009, or
      earlier.
      
      http://www.cisco.com/warp/public/707/cisco-sa-20090923-bundle.shtml
      
      Individual publication links are in "Cisco Event Response: Semiannual
      Cisco IOS Software Advisory Bundled Publication" at the following
      link:
      
      http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_sep09.html
      
      Affected Products
      =================
      
      Cisco devices are vulnerable when running an affected version of
      Cisco IOS Software and configured for Generic Routing Encapsulation
      (GRE), IPinIP, Generic Packet Tunneling in IPv6 or IPv6 over IP
      tunnels with Cisco Express Forwarding enabled. The Cisco IOS Point to
      Point Tunneling Protocol (PPTP) feature creates GRE tunnels that are
      transparent to the user. Therefore systems configured for PPTP are
      also vulnerable.
      
      The Cisco multicast Virtual Private Network (MVPN) feature also
      creates GRE tunnels that are transparent to the user, however MVPN
      configurations are not vulnerable, unless there are other tunnels
      that are configured explicitly.
      
      Vulnerable Products
      +------------------
      
      A Cisco IOS device that is explicitly configured for a tunnel will
      have a configuration similar to the following in the output of "show
      running-config":
      
          interface tunnel0
           ip address [IP-address]
           tunnel source [Tunnel-Source]
           tunnel destination [Tunnel Destination]
          
      
      An alternative method to identify devices that are configured for
      tunnels is to use the "show interfaces" command. A sample output is
      provided below:
      
          Router#show interfaces | include Tunnel
          Tunnel0 is up, line protocol is down
            Hardware is Tunnel
            [...]
            Tunnel protocol/transport GRE/IP
          
          !-- output truncated
          
      
      A Cisco IOS device that is configured for Cisco Express Forwarding
      will display the forwarding table in the output of "show ip cef"
      output, as in the following example:
      
          Router#show ip cef
          Prefix              Next Hop             Interface
          0.0.0.0/0           10.48.64.1           Ethernet0/0
          0.0.0.0/32          receive
          ....
      
      Cisco Express Forwarding is enabled by default in most Cisco IOS
      Software versions.
      
      To determine the Cisco IOS Software release that is running on a
      Cisco product, administrators can log in to the device and issue the 
      "show version" command to display the system banner. The system banner
      confirms that the device is running Cisco IOS Software by displaying
      text similar to "Cisco Internetwork Operating System Software" or
      "Cisco IOS Software." The image name displays in parentheses,
      followed by "Version" and the Cisco IOS Software release name. Other
      Cisco devices do not have the "show version" command or may provide
      different output.
      
      The following example identifies a Cisco 7200 series device running
      Cisco IOS Software release 12.3(19) with an installed image name of
      C7200-JS-M:
      
          7200#show version 
          Cisco Internetwork Operating System Software 
          IOS (tm) 7200 Software (C7200-JS-M), Version 12.3(19), RELEASE SOFTWARE (fc2)
          Technical Support: http://www.cisco.com/techsupport
          Copyright (c) 1986-2006 by cisco Systems, Inc.
          Compiled Thu 11-May-06 22:37 by evmiller
          
          !-- output truncated
          
      
      The following example identifies a Cisco 7300 series device running
      Cisco IOS Software release 12.3(22) with an installed image name of
      C7301-P-M:
      
          7301# show version 
          Cisco Internetwork Operating System Software 
          IOS (tm) 7301 Software (C7301-P-M), Version 12.3(22), RELEASE SOFTWARE (fc2)
          Technical Support: http://www.cisco.com/techsupport
          Copyright (c) 1986-2007 by cisco Systems, Inc.
          Compiled Wed 24-Jan-07 20:26 by ccai
          
          !-- output truncated
          
      
      Additional information about Cisco IOS Software release naming
      conventions is available in "White Paper: Cisco IOS Reference Guide"
      at the following link:
      
      http://www.cisco.com/warp/public/620/1.html
      
      Products Confirmed Not Vulnerable
      +--------------------------------
      
      Cisco IOS XR Software is not affected.
      
      Cisco IOS XE Software is not affected.
      
      IPsec and Dynamic Multipoint VPN (DMVPN) configurations that are
      protected by IPsec are not affected.
      
      MVPN configurations are not affected.
      
      Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) tunnels
      are not affected.
      
      No other Cisco products are currently known to be affected by these
      vulnerabilities.
      
      Details
      =======
      
      A tunnel protocol encapsulates a wide variety of protocol packet
      types inside IP tunnels, creating a virtual point-to-point link
      between internetworking devices over an IP network.
      
      Cisco Express Forwarding is a Layer 3 IP switching technology. It
      improves network performance and scalability for networks with high
      and dynamic traffic patterns.
      
      Devices that are running Cisco IOS Software and configured for GRE,
      IPinIP, Generic Packet Tunneling in IPv6 or IPv6 over IP tunnels
      tunnels and Cisco Express Forwarding may reload upon switching a
      specially crafted malformed packets. Please note that using PPTP
      creates GRE tunnels that are transparent to the end user so devices
      configured for PPTP are vulnerable if they are configured on an
      affected software version. Using MVPN also creates GRE tunnels that
      are transparent to the end user. However MVPN configurations are not
      vulnerable.
      
      These vulnerabilities are addressed by the Cisco Bug IDs CSCsh97579,
      CSCsq31776 and CSCsx70889 and have been assigned
      Common Vulnerabilities and Exposures (CVE) IDs CVE-2009-2872 and
      CVE-2009-2873.
      
      Vulnerability Scoring Details
      =============================
      
      Cisco has provided scores for the vulnerabilities in this advisory
      based on the Common Vulnerability Scoring System (CVSS). The CVSS
      scoring in this Security Advisory is done in accordance with CVSS
      version 2.0.
      
      CVSS is a standards-based scoring method that conveys vulnerability
      severity and helps determine urgency and priority of response.
      
      Cisco has provided a base and temporal score. Customers can then
      compute environmental scores to assist in determining the impact of
      the vulnerability in individual networks.
      
      Cisco has provided an FAQ to answer additional questions regarding
      CVSS at:
      
      http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html
      
      Cisco has also provided a CVSS calculator to help compute the
      environmental impact for individual networks at:
      
      http://intellishield.cisco.com/security/alertmanager/cvss
      
      CSCsh97579 - switching bad packet tunnel to tunnel crashes router
      
      CVSS Base Score - 7.1
      
      Access Vector           - Network
      Access Complexity       - Medium
      Authentication          - None
      Confidentiality Impact  - None
      Integrity Impact        - None
      Availability Impact     - Complete
      
      CVSS Temporal Score - 5.9
      
      Exploitability          - Functional
      Remediation Level       - Official-Fix
      Report Confidence       - Confirmed
      
      CSCsq31776 - ip tunnels regression test can crash the router
      
      CVSS Base Score - 7.1
      
      Access Vector           - Network
      Access Complexity       - Medium
      Authentication          - None
      Confidentiality Impact  - None
      Integrity Impact        - None
      Availability Impact     - Complete
      
      CVSS Temporal Score - 5.9
      
      Exploitability          - Functional
      Remediation Level       - Official-Fix
      Report Confidence       - Confirmed
      
      CSCsx70889 - Systems configured for tunnels reload after receiving malformed packets
      
      CVSS Base Score - 7.1
      
      Access Vector           - Network
      Access Complexity       - Medium
      Authentication          - None
      Confidentiality Impact  - None
      Integrity Impact        - None
      Availability Impact     - Complete
      
      CVSS Temporal Score - 5.9
      
      Exploitability          - Functional
      Remediation Level       - Official-Fix
      Report Confidence       - Confirmed
      
      Impact
      ======
      
      Successful exploitation of the vulnerability may result in the reload
      of an affected system, causing a DoS condition.
      
      Software Versions and Fixes
      ===========================
      
      When considering software upgrades, also consult:
      
      http://www.cisco.com/go/psirt
      
      and any subsequent advisories to determine exposure and a complete
      upgrade solution.
      
      In all cases, customers should exercise caution to be certain the
      devices to be upgraded contain sufficient memory and that current
      hardware and software configurations will continue to be supported
      properly by the new release. If the information is not clear, contact
      the Cisco Technical Assistance Center (TAC) or your contracted
      maintenance provider for assistance.
      
      Each row of the Cisco IOS software table (below) names a Cisco IOS
      release train. If a given release train is vulnerable, then the
      earliest possible releases that contain the fix (along with the
      anticipated date of availability for each, if applicable) are listed
      in the "First Fixed Release" column of the table. The "Recommended
      Release" column indicates the releases which have fixes for all the
      published vulnerabilities at the time of this Advisory. A device
      running a release in the given train that is earlier than the release
      in a specific column (less than the First Fixed Release) is known to
      be vulnerable. Cisco recommends upgrading to a release equal to or
      later than the release in the "Recommended Releases" column of the
      table.
      
      +-------------------------------------------------------------------+
      |   Major    |          Availability of Repaired Releases           |
      |  Release   |                                                      |
      |------------+------------------------------------------------------|
      |  Affected  |                                      |  Recommended  |
      | 12.0-Based |         First Fixed Release          |    Release    |
      |  Releases  |                                      |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0       | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0DA     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; first fixed in 12.4      | 12.4(25b)     |
      | 12.0DB     |                                      |               |
      |            | Releases up to and including 12.0(1) | 12.4(23b)     |
      |            | DB are not vulnerable.               |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0DC     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | 12.0(32)S14; Available on            | 12.0(33)S5    |
      |            | 25-SEP-2009                          |               |
      | 12.0S      |                                      | 12.0(32)S14;  |
      |            | 12.0(33)S5                           | Available on  |
      |            |                                      | 25-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.0(33)S5    |
      |            |                                      |               |
      | 12.0SC     | Vulnerable; first fixed in 12.0S     | 12.0(32)S14;  |
      |            |                                      | Available on  |
      |            |                                      | 25-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.0(33)S5    |
      |            |                                      |               |
      | 12.0SL     | Vulnerable; first fixed in 12.0S     | 12.0(32)S14;  |
      |            |                                      | Available on  |
      |            |                                      | 25-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0SP     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.0(33)S5    |
      |            |                                      |               |
      | 12.0ST     | Vulnerable; first fixed in 12.0S     | 12.0(32)S14;  |
      |            |                                      | Available on  |
      |            |                                      | 25-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.0(33)S5    |
      |            |                                      |               |
      | 12.0SX     | Vulnerable; first fixed in 12.0S     | 12.0(32)S14;  |
      |            |                                      | Available on  |
      |            |                                      | 25-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            | 12.0(32)SY9a                         | 12.0(32)SY9a  |
      |            |                                      |               |
      | 12.0SY     | 12.0(32)SY10; Available on           | 12.0(32)SY10; |
      |            | 25-SEP-2009                          | Available on  |
      |            |                                      | 25-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.0(33)S5    |
      |            |                                      |               |
      | 12.0SZ     | Vulnerable; first fixed in 12.0S     | 12.0(32)S14;  |
      |            |                                      | Available on  |
      |            |                                      | 25-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0T      | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; first fixed in 12.4      | 12.4(25b)     |
      | 12.0W      |                                      |               |
      |            | Releases up to and including 12.0    | 12.4(23b)     |
      |            | (16)W5(21c) are not vulnerable.      |               |
      |------------+--------------------------------------+---------------|
      |            | Releases prior to 12.0(5)WC3b are    |               |
      | 12.0WC     | vulnerable, release 12.0(5)WC3b and  |               |
      |            | later are not vulnerable             |               |
      |------------+--------------------------------------+---------------|
      | 12.0WT     | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XA     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XB     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XC     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XD     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XE     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      | 12.0XF     | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XG     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XH     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Releases prior to 12.0(4)XI2 are     | 12.4(25b)     |
      | 12.0XI     | vulnerable, release 12.0(4)XI2 and   |               |
      |            | later are not vulnerable; first      | 12.4(23b)     |
      |            | fixed in 12.4                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XJ     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XK     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XL     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XM     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XN     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XQ     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; first fixed in 12.4      | 12.4(25b)     |
      | 12.0XR     |                                      |               |
      |            | Releases up to and including 12.0(6) | 12.4(23b)     |
      |            | XR are not vulnerable.               |               |
      |------------+--------------------------------------+---------------|
      | 12.0XS     | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XT     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.0XV     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |  Affected  |                                      |  Recommended  |
      | 12.1-Based |         First Fixed Release          |    Release    |
      |  Releases  |                                      |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1       | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1AA     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(50)SE3   |
      |            |                                      |               |
      | 12.1AX     | Vulnerable; first fixed in 12.2SE    | 12.2(52)SE;   |
      |            |                                      | Available on  |
      |            |                                      | 13-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            | Releases up to and including 12.1    | 12.2(50)SE3   |
      |            | (13)AY are not vulnerable.           |               |
      | 12.1AY     |                                      | 12.2(52)SE;   |
      |            | Releases 12.1(22)AY1 and later are   | Available on  |
      |            | not vulnerable; first fixed in       | 13-OCT-2009   |
      |            | 12.2SE                               |               |
      |------------+--------------------------------------+---------------|
      | 12.1AZ     | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1CX     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1DA     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1DB     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1DC     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(18)      |
      | 12.1E      | Vulnerable; first fixed in 12.2SXF   | SXF17;        |
      |            |                                      | Available on  |
      |            |                                      | 30-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            | Releases up to and including 12.1(4) |               |
      |            | EA1c are not vulnerable.             |               |
      | 12.1EA     |                                      | 12.2(50)SE3   |
      |            | Releases 12.1(22)EA11 and later are  |               |
      |            | not vulnerable; first fixed in       |               |
      |            | 12.2SE                               |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.1EB     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(33)SCB4  |
      | 12.1EC     | Vulnerable; first fixed in 12.3BC    |               |
      |            |                                      | 12.3(21a)BC9  |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.1EO     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(31)SGA11 |
      | 12.1EU     | Vulnerable; first fixed in 12.2SG    |               |
      |            |                                      | 12.2(50)SG4   |
      |------------+--------------------------------------+---------------|
      | 12.1EV     | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1EW     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1EX     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      | 12.1EY     | Releases up to and including 12.1(1) |               |
      |            | EY are not vulnerable.               |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1EZ     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1GA     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1GB     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1T      | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XA     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XB     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XC     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XD     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XE     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XF     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XG     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XH     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XI     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XJ     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XL     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XM     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XP     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XQ     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XR     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; first fixed in 12.4      | 12.4(25b)     |
      | 12.1XS     |                                      |               |
      |            | Releases up to and including 12.1(1) | 12.4(23b)     |
      |            | XS are not vulnerable.               |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XT     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XU     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XV     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XW     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XX     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; first fixed in 12.4      | 12.4(25b)     |
      | 12.1XY     |                                      |               |
      |            | Releases up to and including 12.1(4) | 12.4(23b)     |
      |            | XY are not vulnerable.               |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1XZ     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1YA     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1YB     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1YC     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1YD     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Releases prior to 12.1(5)YE6 are     | 12.4(25b)     |
      | 12.1YE     | vulnerable, release 12.1(5)YE6 and   |               |
      |            | later are not vulnerable; first      | 12.4(23b)     |
      |            | fixed in 12.4                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1YF     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.1YH     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.1YI     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      | 12.1YJ     | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      |  Affected  |                                      |  Recommended  |
      | 12.2-Based |         First Fixed Release          |    Release    |
      |  Releases  |                                      |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2       | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2B      | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2BC     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2BW     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2BX     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2BY     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2BZ     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2CX     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2CY     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(31)SB16  |
      | 12.2CZ     | Vulnerable; first fixed in 12.2SB    |               |
      |            |                                      | 12.2(33)SB7   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2DA     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2DD     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2DX     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(31)SGA11 |
      | 12.2EW     | Vulnerable; first fixed in 12.2SG    |               |
      |            |                                      | 12.2(50)SG4   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(31)SGA11 |
      | 12.2EWA    | Vulnerable; first fixed in 12.2SG    |               |
      |            |                                      | 12.2(50)SG4   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(50)SE3   |
      |            |                                      |               |
      | 12.2EX     | Vulnerable; first fixed in 12.2SE    | 12.2(52)SE;   |
      |            |                                      | Available on  |
      |            |                                      | 13-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            | Releases prior to 12.2(46)EY are     | 12.2(50)SE3   |
      |            | vulnerable, release 12.2(46)EY and   |               |
      | 12.2EY     | later are not vulnerable; first      | 12.2(52)SE;   |
      |            | fixed in 12.2SE                      | Available on  |
      |            |                                      | 13-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(50)SE3   |
      |            |                                      |               |
      | 12.2EZ     | Vulnerable; first fixed in 12.2SE    | 12.2(52)SE;   |
      |            |                                      | Available on  |
      |            |                                      | 13-OCT-2009   |
      |------------+--------------------------------------+---------------|
      | 12.2FX     | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      | 12.2FY     | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(50)SE3   |
      |            |                                      |               |
      | 12.2FZ     | Vulnerable; first fixed in 12.2SE    | 12.2(52)SE;   |
      |            |                                      | Available on  |
      |            |                                      | 13-OCT-2009   |
      |------------+--------------------------------------+---------------|
      | 12.2IRA    | Vulnerable; first fixed in 12.2SRD   | 12.2(33)SRD3  |
      |------------+--------------------------------------+---------------|
      | 12.2IRB    | Vulnerable; first fixed in 12.2SRD   | 12.2(33)SRD3  |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2IRC    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2IXA    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2IXB    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2IXC    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2IXD    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2IXE    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2IXF    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2IXG    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2IXH    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      | 12.2JA     | Releases up to and including 12.2    |               |
      |            | (13)JA4 are not vulnerable.          |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2JK     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2MB     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2MC     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(31)SB16  |
      | 12.2S      | Vulnerable; first fixed in 12.2SB    |               |
      |            |                                      | 12.2(33)SB7   |
      |------------+--------------------------------------+---------------|
      |            | 12.2(31)SB16                         |               |
      |            |                                      |               |
      | 12.2SB     | 12.2(33)SB6                          | 12.2(33)SB7   |
      |            |                                      |               |
      |            | 12.2(28)SB14; Available on           |               |
      |            | 20-OCT-2009                          |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(31)SB16  |
      | 12.2SBC    | Vulnerable; first fixed in 12.2SB    |               |
      |            |                                      | 12.2(33)SB7   |
      |------------+--------------------------------------+---------------|
      | 12.2SCA    | Vulnerable; first fixed in 12.2SCB   | 12.2(33)SCB4  |
      |------------+--------------------------------------+---------------|
      | 12.2SCB    | 12.2(33)SCB4                         | 12.2(33)SCB4  |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(50)SE3   |
      |            | 12.2(50)SE2                          |               |
      | 12.2SE     |                                      | 12.2(52)SE;   |
      |            | 12.2(52)SE; Available on 13-OCT-2009 | Available on  |
      |            |                                      | 13-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(50)SE3   |
      |            |                                      |               |
      | 12.2SEA    | Vulnerable; first fixed in 12.2SE    | 12.2(52)SE;   |
      |            |                                      | Available on  |
      |            |                                      | 13-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(50)SE3   |
      |            |                                      |               |
      | 12.2SEB    | Vulnerable; first fixed in 12.2SE    | 12.2(52)SE;   |
      |            |                                      | Available on  |
      |            |                                      | 13-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(50)SE3   |
      |            |                                      |               |
      | 12.2SEC    | Vulnerable; first fixed in 12.2SE    | 12.2(52)SE;   |
      |            |                                      | Available on  |
      |            |                                      | 13-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(50)SE3   |
      |            |                                      |               |
      | 12.2SED    | Vulnerable; first fixed in 12.2SE    | 12.2(52)SE;   |
      |            |                                      | Available on  |
      |            |                                      | 13-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(50)SE3   |
      |            |                                      |               |
      | 12.2SEE    | Vulnerable; first fixed in 12.2SE    | 12.2(52)SE;   |
      |            |                                      | Available on  |
      |            |                                      | 13-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            | Releases prior to 12.2(25)SEF2 are   | 12.2(50)SE3   |
      |            | vulnerable, release 12.2(25)SEF2 and |               |
      | 12.2SEF    | later are not vulnerable; first      | 12.2(52)SE;   |
      |            | fixed in 12.2SE                      | Available on  |
      |            |                                      | 13-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            | Releases prior to 12.2(25)SEG4 are   | 12.2(50)SE3   |
      |            | vulnerable, release 12.2(25)SEG4 and |               |
      | 12.2SEG    | later are not vulnerable; first      | 12.2(52)SE;   |
      |            | fixed in 12.2SE                      | Available on  |
      |            |                                      | 13-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            | 12.2(50)SG4                          |               |
      | 12.2SG     |                                      | 12.2(50)SG4   |
      |            | 12.2(53)SG                           |               |
      |------------+--------------------------------------+---------------|
      | 12.2SGA    | 12.2(31)SGA11                        | 12.2(31)SGA11 |
      |------------+--------------------------------------+---------------|
      | 12.2SL     | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2SM     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2SO     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2SQ     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      | 12.2SRA    | Vulnerable; first fixed in 12.2SRD   | 12.2(33)SRD3  |
      |------------+--------------------------------------+---------------|
      | 12.2SRB    | Vulnerable; first fixed in 12.2SRD   | 12.2(33)SRD3  |
      |------------+--------------------------------------+---------------|
      | 12.2SRC    | 12.2(33)SRC5; Available on           | 12.2(33)SRD3  |
      |            | 29-OCT-2009                          |               |
      |------------+--------------------------------------+---------------|
      | 12.2SRD    | 12.2(33)SRD2                         | 12.2(33)SRD3  |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2STE    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2SU     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2SV     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2SVA    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2SVC    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2SVD    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2SVE    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.2SW     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(18)      |
      | 12.2SX     | Vulnerable; first fixed in 12.2SXF   | SXF17;        |
      |            |                                      | Available on  |
      |            |                                      | 30-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(18)      |
      | 12.2SXA    | Vulnerable; first fixed in 12.2SXF   | SXF17;        |
      |            |                                      | Available on  |
      |            |                                      | 30-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(18)      |
      | 12.2SXB    | Vulnerable; first fixed in 12.2SXF   | SXF17;        |
      |            |                                      | Available on  |
      |            |                                      | 30-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(18)      |
      | 12.2SXD    | Vulnerable; first fixed in 12.2SXF   | SXF17;        |
      |            |                                      | Available on  |
      |            |                                      | 30-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(18)      |
      | 12.2SXE    | Vulnerable; first fixed in 12.2SXF   | SXF17;        |
      |            |                                      | Available on  |
      |            |                                      | 30-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            | 12.2(18)SXF17; Available on          | 12.2(18)      |
      |            | 30-SEP-2009                          | SXF17;        |
      | 12.2SXF    |                                      | Available on  |
      |            | Please see IOS Software Modularity   | 30-SEP-2009   |
      |            | Patch                                |               |
      |------------+--------------------------------------+---------------|
      |            | 12.2(33)SXH6; Available on           |               |
      |            | 30-OCT-2009                          | 12.2(33)SXH6; |
      | 12.2SXH    |                                      | Available on  |
      |            | Please see IOS Software Modularity   | 30-OCT-2009   |
      |            | Patch                                |               |
      |------------+--------------------------------------+---------------|
      | 12.2SXI    | 12.2(33)SXI2                         | 12.2(33)SXI2a |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(31)SB16  |
      | 12.2SY     | Vulnerable; first fixed in 12.2SB    |               |
      |            |                                      | 12.2(33)SB7   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(31)SB16  |
      | 12.2SZ     | Vulnerable; first fixed in 12.2SB    |               |
      |            |                                      | 12.2(33)SB7   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2T      | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2TPC    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; first fixed in 12.4      | 12.4(25b)     |
      | 12.2XA     |                                      |               |
      |            | Releases up to and including 12.2(1) | 12.4(23b)     |
      |            | XA are not vulnerable.               |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XB     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XC     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XD     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XE     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XF     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XG     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XH     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XI     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XJ     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XK     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XL     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XM     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      | 12.2XNA    | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      | 12.2XNB    | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      | 12.2XNC    | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      | 12.2XND    | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(31)SGA11 |
      | 12.2XO     | Vulnerable; first fixed in 12.2SG    |               |
      |            |                                      | 12.2(50)SG4   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XQ     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XR     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XS     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XT     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XU     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XV     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2XW     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2YA     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YB     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YC     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YD     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YE     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YF     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YG     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YH     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YJ     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YK     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YL     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2YM     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YN     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YO     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; first fixed in 12.4      | 12.4(25b)     |
      | 12.2YP     |                                      |               |
      |            | Releases up to and including 12.2(8) | 12.4(23b)     |
      |            | YP are not vulnerable.               |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YQ     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YR     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      | 12.2YS     | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YT     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YU     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YV     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YW     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YX     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YY     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2YZ     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(18)      |
      | 12.2ZA     | Vulnerable; first fixed in 12.2SXF   | SXF17;        |
      |            |                                      | Available on  |
      |            |                                      | 30-SEP-2009   |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2ZB     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2ZC     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2ZD     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2ZE     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2ZF     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2ZG     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.2ZH     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2ZJ     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2ZL     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2ZP     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(33)SXH6; |
      | 12.2ZU     | Vulnerable; first fixed in 12.2SXH   | Available on  |
      |            |                                      | 30-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(31)SB16  |
      | 12.2ZX     | Vulnerable; first fixed in 12.2SB    |               |
      |            |                                      | 12.2(33)SB7   |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.2ZY     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      | 12.2ZYA    | 12.2(18)ZYA2                         |               |
      |------------+--------------------------------------+---------------|
      |  Affected  |                                      |  Recommended  |
      | 12.3-Based |         First Fixed Release          |    Release    |
      |  Releases  |                                      |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3       | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3B      | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      | 12.3BC     | 12.3(21a)BC9                         | 12.3(21a)BC9  |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3BW     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      | 12.3EU     | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.3JA     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.3JEA    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.3JEB    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.3JEC    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3JK     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.3JL     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      | 12.3JX     | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3T      | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.3TPC    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3VA     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3XA     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.3XB     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3XC     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3XD     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3XE     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.3XF     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3XG     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.2(31)SB16  |
      | 12.3XI     | Vulnerable; first fixed in 12.2SB    |               |
      |            |                                      | 12.2(33)SB7   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)XR7   |
      | 12.3XJ     | Vulnerable; first fixed in 12.4XR    |               |
      |            |                                      | 12.4(22)XR    |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3XK     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      |            |                                      | 12.4(22)T3    |
      | 12.3XL     | Vulnerable; first fixed in 12.4T     |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3XQ     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3XR     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3XS     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3XU     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)XR7   |
      | 12.3XW     | Vulnerable; first fixed in 12.4XR    |               |
      |            |                                      | 12.4(22)XR    |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3XX     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3XY     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3XZ     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(25b)     |
      | 12.3YA     | Vulnerable; first fixed in 12.4      |               |
      |            |                                      | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3YD     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)XR7   |
      | 12.3YF     | Vulnerable; first fixed in 12.4XR    |               |
      |            |                                      | 12.4(22)XR    |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3YG     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3YH     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3YI     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3YJ     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3YK     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3YM     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3YQ     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3YS     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3YT     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3YU     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)XR7   |
      | 12.3YX     | Vulnerable; first fixed in 12.4XR    |               |
      |            |                                      | 12.4(22)XR    |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.3YZ     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.3ZA     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |  Affected  |                                      |  Recommended  |
      | 12.4-Based |         First Fixed Release          |    Release    |
      |  Releases  |                                      |               |
      |------------+--------------------------------------+---------------|
      |            | 12.4(23b)                            | 12.4(25b)     |
      | 12.4       |                                      |               |
      |            | 12.4(25b)                            | 12.4(23b)     |
      |------------+--------------------------------------+---------------|
      | 12.4GC     | Not Vulnerable                       |               |
      |------------+--------------------------------------+---------------|
      | 12.4JA     | 12.4(13d)JA                          |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.4JDA    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.4JDC    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.4JDD    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.4JK     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.4JL     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.4JMA    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.4JMB    | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      | 12.4JX     | Vulnerable; first fixed in 12.4JA    |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(11)MD9   |
      |            |                                      |               |
      | 12.4MD     | 12.4(11)MD9                          | 12.4(15)MD3   |
      |            |                                      |               |
      |            |                                      | 12.4(22)MD1   |
      |------------+--------------------------------------+---------------|
      | 12.4MDA    | 12.4(22)MDA1                         | 12.4(22)MDA1  |
      |------------+--------------------------------------+---------------|
      |            | Releases prior to 12.4(19)MR3 are    |               |
      | 12.4MR     | vulnerable, release 12.4(19)MR3 and  | 12.4(19)MR3   |
      |            | later are not vulnerable             |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4SW     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            | 12.4(15)T10                          |               |
      |            |                                      | 12.4(20)T4    |
      |            | 12.4(20)T4                           |               |
      | 12.4T      |                                      | 12.4(22)T3    |
      |            | 12.4(22)T2                           |               |
      |            |                                      | 12.4(24)T2;   |
      |            | 12.4(24)T2;Available on 23-OCT-2009  | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XA     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XB     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XC     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XD     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XE     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XF     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XG     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XJ     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XK     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.4XL     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XM     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.4XN     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.4XP     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XQ     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            | 12.4(22)XR                           | 12.4(15)XR7   |
      | 12.4XR     |                                      |               |
      |            | 12.4(15)XR6                          | 12.4(22)XR    |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XT     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            | Vulnerable; Contact your support     |               |
      | 12.4XV     | organization per the instructions in |               |
      |            | Obtaining Fixed Software section of  |               |
      |            | this advisory                        |               |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XW     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XY     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4XZ     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      |            |                                      | 12.4(15)T10   |
      |            |                                      |               |
      |            |                                      | 12.4(20)T4    |
      |            |                                      |               |
      | 12.4YA     | Vulnerable; first fixed in 12.4T     | 12.4(22)T3    |
      |            |                                      |               |
      |            |                                      | 12.4(24)T2;   |
      |            |                                      | Available on  |
      |            |                                      | 23-OCT-2009   |
      |------------+--------------------------------------+---------------|
      | 12.4YB     | 12.4(22)YB4                          | 12.4(22)YB4   |
      |------------+--------------------------------------+---------------|
      | 12.4YD     | 12.4(22)YD1                          | 12.4(22)YD1   |
      |------------+--------------------------------------+---------------|
      | 12.4YE     | 12.4(22)YE1                          | 12.4(22)YE1   |
      +-------------------------------------------------------------------+
      
      Cisco IOS Software Modularity - Maintenance Packs
      +------------------------------------------------
      
      Customers who are using Cisco IOS Software Modularity can apply the
      respective maintenance packs. More information on Cisco IOS Software
      Modularity can be found at the following link:
      
      http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/prod_bulletin0900aecd80313e15.html
      
      The Maintenance Packs listed below can be downloaded at:
      
      http://www.cisco.com/go/pn
      
      Cisco IOS Software Modularity Maintenance Pack for 12.2SXF
      +---------------------------------------------------------
      
      +-------------------------------------------------------------------+
      |  Cisco IOS Software Release   |   Solution Maintenance Pack(MP)   |
      |-------------------------------+-----------------------------------|
      | 12.2(18)SXF11                 | MP002                             |
      |-------------------------------+-----------------------------------|
      | 12.2(18)SXF13                 | MP001                             |
      |-------------------------------+-----------------------------------|
      | 12.2(18)SXF14                 | MP001                             |
      |-------------------------------+-----------------------------------|
      | 12.2(18)SXF15                 | MP001                             |
      |-------------------------------+-----------------------------------|
      | 12.2(18)SXF16                 | MP001                             |
      +-------------------------------------------------------------------+
      
      Cisco IOS Software Modularity Maintenance Pack for 12.2SXH
      
      +-------------------------------------------------------------------+
      |  Cisco IOS Software Release   |   Solution Maintenance Pack(MP)   |
      |-------------------------------+-----------------------------------|
      | 12.2(33)SXH3                  | MP003                             |
      |-------------------------------+-----------------------------------|
      | 12.2(33)SXH4                  | MP002                             |
      |-------------------------------+-----------------------------------|
      | 12.2(33)SXH5                  | MP001                             |
      +-------------------------------------------------------------------+
      
      Workarounds
      ===========
      
      Disabling Cisco Express Forwarding will mitigate this vulnerability.
      It can be disabled in two ways:
      
      Disabling Cisco Express Forwarding Globally
      +------------------------------------------
      
      Cisco Express Forwarding can be globally disabled by using the "no ip
      cef" global configuration command.
      
      Disabling Cisco Express Forwarding on Tunnel Interfaces
      +------------------------------------------------------
      
      Cisco Express Forwarding can also be disabled on individual tunnel
      interfaces. To be effective, it must be disabled on all tunnel
      interfaces configured on an affected device. Cisco Express Forwarding
      can be disabled on individual interfaces as shown in the following
      example:
      
          interface Tunnel [interface-ID]
            no ip route-cache cef
      
      Note: Disabling Cisco Express Forwarding may have significant
      performance impact and is not recommended.
      
      Additional mitigations that can be deployed on Cisco devices in the
      network are available in the Cisco Applied Mitigation Bulletin
      companion document for this advisory, which is available at the
      following link:
      
      http://www.cisco.com/warp/public/707/cisco-amb-20090923-tunnels.shtml
      
      Obtaining Fixed Software
      ========================
      
      Cisco has released free software updates that address these
      vulnerabilities. Prior to deploying software, customers should
      consult their maintenance provider or check the software for feature
      set compatibility and known issues specific to their environment.
      
      Customers may only install and expect support for the feature sets
      they have purchased. By installing, downloading, accessing or
      otherwise using such software upgrades, customers agree to be bound
      by the terms of Cisco's software license terms found at:
      
      http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html
      
      or as otherwise set forth at Cisco.com Downloads at:
      
      http://www.cisco.com/public/sw-center/sw-usingswc.shtml
      
      Do not contact psirt at cisco dot com or security-alert at cisco dot com for
      software upgrades.
      
      Customers with Service Contracts
      +-------------------------------
      
      Customers with contracts should obtain upgraded software through
      their regular update channels. For most customers, this means that
      upgrades should be obtained through the Software Center on Cisco's
      worldwide website at http://www.cisco.com.
      
      Customers using Third Party Support Organizations
      +------------------------------------------------
      
      Customers whose Cisco products are provided or maintained through
      prior or existing agreements with third-party support organizations,
      such as Cisco Partners, authorized resellers, or service providers
      should contact that support organization for guidance and assistance
      with the appropriate course of action in regards to this advisory.
      
      The effectiveness of any workaround or fix is dependent on specific
      customer situations, such as product mix, network topology, traffic
      behavior, and organizational mission. Due to the variety of affected
      products and releases, customers should consult with their service
      provider or support organization to ensure any applied workaround or
      fix is the most appropriate for use in the intended network before it
      is deployed.
      
      Customers without Service Contracts
      +----------------------------------
      
      Customers who purchase direct from Cisco but do not hold a Cisco
      service contract, and customers who purchase through third-party
      vendors but are unsuccessful in obtaining fixed software through
      their point of sale should acquire upgrades by contacting the Cisco
      Technical Assistance Center (TAC). TAC contacts are as follows.
      
        * +1 800 553 2447 (toll free from within North America)
        * +1 408 526 7209 (toll call from anywhere in the world)
        * e-mail: tac at cisco dot com
      
      Customers should have their product serial number available and be
      prepared to give the URL of this notice as evidence of entitlement to
      a free upgrade. Free upgrades for non-contract customers must be
      requested through the TAC.
      
      Refer to:
      
      http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html
      
      for additional TAC contact information, including localized telephone
      numbers, and instructions and e-mail addresses for use in various
      languages.
      
      Exploitation and Public Announcements
      =====================================
      
      The Cisco PSIRT is not aware of any public announcements or malicious
      use of the vulnerability described in this advisory.
      
      This vulnerability was found internally.
      
      Status of this Notice: FINAL
      ============================
      
      THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY
      KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF
      MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE
      INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS
      AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS
      DOCUMENT AT ANY TIME.
      
      A stand-alone copy or Paraphrase of the text of this document that
      omits the distribution URL in the following section is an
      uncontrolled copy, and may lack important information or contain
      factual errors.
      
      Distribution
      ============
      
      This advisory is posted on Cisco's worldwide website at:
      
      http://www.cisco.com/warp/public/707/cisco-sa-20090923-tunnels.shtml
      
      In addition to worldwide web posting, a text version of this notice
      is clear-signed with the Cisco PSIRT PGP key and is posted to the
      following e-mail and Usenet news recipients.
      
        * cust-security-announce at cisco dot com
        * first-bulletins at lists dot first dot org
        * bugtraq at securityfocus dot com
        * vulnwatch at vulnwatch dot org
        * cisco at spot dot colorado dot edu
        * cisco-nsp at puck dot nether dot net
        * full-disclosure at lists.grok dot org dot uk
        * comp.dcom.sys.cisco at newsgate dot cisco dot com
      
      Future updates of this advisory, if any, will be placed on Cisco's
      worldwide website, but may or may not be actively announced on
      mailing lists or newsgroups. Users concerned about this problem are
      encouraged to check the above URL for any updates.
      
      Revision History
      ================
      
      +---------------------------------------+
      | Revision |              | Initial     |
      | 1.0      | 2009-Sept-23 | public      |
      |          |              | release     |
      +---------------------------------------+
      
      Cisco Security Procedures
      =========================
      
      Complete information on reporting security vulnerabilities in Cisco
      products, obtaining assistance with security incidents, and
      registering to receive security information from Cisco, is available
      on Cisco's worldwide website at:
      
      http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html
      
      This includes instructions for press inquiries regarding Cisco security
      notices. All Cisco security advisories are available at:
      
      http://www.cisco.com/go/psirt
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