[apops] Cisco Security Advisory: Cisco IOS Software Network Address Tran

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  • Subject: [apops] Cisco Security Advisory: Cisco IOS Software Network Address Translation Vulnerabilities
  • From: Cisco Systems Product Security Incident Response Team <psirt at cisco dot com>
  • Date: Wed, 28 Sep 2011 12:00:00 -0400
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      Cisco Security Advisory: Cisco IOS Software Network Address
      Translation Vulnerabilities
      
      Advisory ID: cisco-sa-20110928-nat
      
      Revision 1.0
      
      For Public Release 2011 Sep 28 1600 UTC (GMT)
      
      +--------------------------------------------------------------------
      
      Summary
      =======
      
      The Cisco IOS Software network address translation (NAT) feature
      contains multiple denial of service (DoS) vulnerabilities in the
      translation of the following protocols:
      
        * NetMeeting Directory (Lightweight Directory Access Protocol,
          LDAP)
        * Session Initiation Protocol (Multiple vulnerabilities)
        * H.323 protocol
      
      All the vulnerabilities described in this document are caused by
      packets in transit on the affected devices when those packets require
      application layer translation.
      
      Cisco has released free software updates that address these
      vulnerabilities.
      
      This advisory is posted at
      http://www.cisco.com/warp/public/707/cisco-sa-20110928-nat.shtml.
      
      Note: The September 28, 2011, Cisco IOS Software Security Advisory
      bundled publication includes ten Cisco Security Advisories. Nine of the
      advisories address vulnerabilities in Cisco IOS Software, and one
      advisory addresses a vulnerability in Cisco Unified Communications
      Manager. Each advisory lists the Cisco IOS Software releases that
      correct the vulnerability or vulnerabilities detailed in the advisory as
      well as the Cisco IOS Software releases that correct all vulnerabilities
      in the September 2011 Bundled Publication.
      
      Individual publication links are in "Cisco Event Response: Semiannual
      Cisco IOS Software Security Advisory Bundled Publication" at the
      following link:
      
      http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_sep11.html
      
      Affected Products
      =================
      
      Vulnerable Products
      +------------------
      
      Cisco devices that are running Cisco IOS Software are vulnerable when
      they are configured for NAT and contain support for one or more of
      the following features:
      
        * NetMeeting Directory NAT (LDAP on TCP port 389)
        * NAT for Session Initiation Protocol (SIP)
        * NAT for H.323
      
      The preferred method to verify whether NAT is enabled on a Cisco IOS
      device is to log in to the device and issue the "show ip nat
      statistics" command. If NAT is active the sections Outside interfaces
      and Inside interfaces will each include at least one interface. The
      following example shows a device on which the NAT feature is active:
      
          Router#show ip nat statistics
      
          Total translations: 2 (0 static, 2 dynamic; 0 extended)
          Outside interfaces: Serial0
          Inside interfaces: Ethernet1
          Hits: 135  Misses: 5
          Expired translations: 2
          Dynamic mappings:
          -- Inside Source
          access-list 1 pool mypool refcount 2
           pool mypool: netmask 255.255.255.0
                  start 192.168.10.1 end 192.168.10.254
                  type generic, total addresses 14, allocated 2 (14%), misses 0
      
      Depending on the Cisco IOS Software release, the interface lists can
      be in the lines following the Outside interfaces and Inside
      interfaces lines. In releases that support the section filter on show
      commands, the administrator can determine whether NAT is active by
      using the "show ip nat statistics | section interfaces" command:
      
          Router> show ip nat statistics | section interfaces
          Outside interfaces:
            GigabitEthernet0/0
          Inside interfaces:
            GigabitEthernet0/1
          Router>
      
      Alternatively, to determine whether NAT has been enabled in the Cisco
      IOS Software configuration, either the "ip nat inside" and "ip nat
      outside" commands must be present in different interfaces or, in the
      case of the NAT Virtual Interface, the "ip nat enable" interface command
      will be present.
      
      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 product that is running
      Cisco IOS Software Release 15.0(1)M1 with an installed image name of
      C3900-UNIVERSALK9-M:
      
          Router> show version
          Cisco IOS Software, C3900 Software (C3900-UNIVERSALK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1)
          Technical Support: http://www.cisco.com/techsupport
          Copyright (c) 1986-2009 by Cisco Systems, Inc.
          Compiled Wed 02-Dec-09 17:17 by prod_rel_team
      
      
          !--- output truncated
      
      
      Additional information about Cisco IOS Software release naming
      conventions is available in White Paper: Cisco IOS and NX-OS Software
      Reference Guide.
      
      Products Confirmed Not Vulnerable
      +--------------------------------
      
      No other Cisco products are currently known to be affected by these
      vulnerabilities.
      
      Details
      =======
      
      NAT for NetMeeting Directory (LDAP) Vulnerability
      +------------------------------------------------
      
      LDAP is a protocol for querying and modifying data of directory
      services implemented in IP networks. NAT for NetMeeting Directory,
      also known as the Internet Locator Service (ILS), translates LDAP
      packets on TCP port 389. The inspected port is not configurable.
      
      This vulnerability is triggered by malformed transit LDAP traffic
      that needs to be processed by the NAT for NetMeeting Directory
      feature.
      
      This vulnerability is documented in Cisco bug ID CSCtd10712 and has been
      assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2011-0946.
      
      NAT for SIP DoS Vulnerabilities
      +------------------------------
      
      Four vulnerabilities in the NAT for SIP feature are described in this
      document:
      
      NAT of SIP over TCP vulnerability: Crafted SIP packets on TCP port
      5060 could cause unpredictable results, including the reload of the
      vulnerable device. Translation of SIP over TCP packets will be disabled
      by default with the fix for this vulnerability. This vulnerability is
      documented in Cisco bug ID CSCso02147 and has been assigned Common
      Vulnerabilities and Exposures CVE-2011-3276.
      
      Provider edge Multiprotocol Label Switching (MPLS) NAT of SIP over UDP
      packets DoS vulnerability: A malformed SIP packet on UDP 5060 that
      transits an MPLS enabled vulnerable device that needs an MPLS tag
      to be imposed on the malformed packet might reload the device. This
      vulnerability is documented in Cisco bug ID CSCti98219 and has been
      assigned CVE ID CVE-2011-3279.
      
      NAT of crafted SIP over UDP packets DoS vulnerabilities: There are two
      DoS vulnerabilities related to similar crafted packets on UDP port 5060
      that require SIP translation: the first is a vulnerability that will
      cause the device to reload and the second will cause a memory leak
      that could lead to a DoS condition, including reload of the vulnerable
      device. The NAT of SIP vulnerabilities are documented in Cisco bug ID
      CSCti48483 and Cisco bug ID CSCtj04672. They have been assigned CVE IDs
      CVE-2011-3278 and CVE-2011-3280.
      
      NAT of H.323 Packets DoS Vulnerability
      +-------------------------------------
      
      Transit crafted H.323 packets on TCP port 1720 could cause a reload of
      the vulnerable device. This vulnerability is documented in Cisco bug ID
      CSCth11006 and has been assigned Common Vulnerabilities and Exposures
      (CVE) ID CVE-2011-3277.
      
      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
      
      
      * CSCtd10712 ("NAT LDAP Vulnerability")
      
      CVSS Base Score - 7.8
          Access Vector -            Network
          Access Complexity -        Low
          Authentication -           None
          Confidentiality Impact -   None
          Integrity Impact -         None
          Availability Impact -      Complete
      
      CVSS Temporal Score - 6.4
          Exploitability -           Functional
          Remediation Level -        Official-Fix
          Report Confidence -        Confirmed
      
      
      * CSCso02147 ("NAT of SIP over TCP Vulnerability")
      
      CVSS Base Score - 7.8
          Access Vector -            Network
          Access Complexity -        Low
          Authentication -           None
          Confidentiality Impact -   None
          Integrity Impact -         None
          Availability Impact -      Complete
      
      CVSS Temporal Score - 6.4
          Exploitability -           Functional
          Remediation Level -        Official-Fix
          Report Confidence -        Confirmed
      
      
      * CSCti98219 ("Provider-Edge MPLS NAT of SIP over UDP packets
      Vulnerability")
      
      CVSS Base Score - 7.8
          Access Vector -            Network
          Access Complexity -        Low
          Authentication -           None
          Confidentiality Impact -   None
          Integrity Impact -         None
          Availability Impact -      Complete
      
      CVSS Temporal Score - 6.4
          Exploitability -           Functional
          Remediation Level -        Official-Fix
          Report Confidence -        Confirmed
      
      
      * CSCti48483/CSCtj04672 ("NAT of crafted SIP packets vulnerabilities")
      
      CVSS Base Score - 7.8
          Access Vector -            Network
          Access Complexity -        Low
          Authentication -           None
          Confidentiality Impact -   None
          Integrity Impact -         None
          Availability Impact -      Complete
      
      CVSS Temporal Score - 6.4
          Exploitability -           Functional
          Remediation Level -        Official-Fix
          Report Confidence -        Confirmed
      
      
      * CSCth11006 ("NAT of H.323 Packets DoS Vulnerability")
      
      CVSS Base Score - 7.8
          Access Vector -            Network
          Access Complexity -        Low
          Authentication -           None
          Confidentiality Impact -   None
          Integrity Impact -         None
          Availability Impact -      Complete
      
      CVSS Temporal Score - 6.4
          Exploitability -           Functional
          Remediation Level -        Official-Fix
          Report Confidence -        Confirmed
      
      
      Impact
      ======
      
      Successful exploitation of these vulnerabilities can cause the device
      to reload or become unresponsive. For the NAT of UDP over SIP
      vulnerability that corresponds to Cisco bug CSCtj04672, it is also
      possible that exploitation can cause a memory leak. Repeated
      exploitation of the memory leak vulnerability can lead to a DoS
      condition in which the device reloads or becomes unresponsive.
      Reloading may occur automatically, or the device may require manual
      intervention to reload.
      
      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.
      
      Additionally, the Cisco IOS Software Checker is available on
      the Cisco Security Intelligence Operations (SIO) portal at
      http://tools.cisco.com/security/center/selectIOSVersion.x. It provides
      several features for checking which Security Advisories affect specified
      versions of Cisco IOS Software.
      
      Cisco IOS Software
      +-----------------
      
      Each row of the following Cisco IOS Software table corresponds to a
      Cisco IOS Software train. If a particular train is vulnerable, the
      earliest releases that contain the fix are listed in the First Fixed
      Release For This Advisory column. The First Fixed Release for All
      Advisories in the September 2011 Bundled Publication column lists the
      earliest possible releases that correct all the published
      vulnerabilities in the Cisco IOS Software Security Advisory bundled
      publication. Cisco recommends upgrading to the latest available
      release, where possible.
      
      +------------------------------------------------------------+
      |   Major    |         Availability of Repaired Releases     |
      |  Release   |                                               |
      |------------+-----------------------------------------------|
      |  Affected  |                       |  First Fixed Release  |
      | 12.0-Based |  First Fixed Release  | for All Advisories in |
      |  Releases  |                       |  the September 2011   |
      |            |                       |  Bundled Publication  |
      |------------------------------------------------------------|
      | There are no affected 12.0-based releases                  |
      |------------------------------------------------------------|
      |  Affected  |                       |  First Fixed Release  |
      | 12.1-Based |  First Fixed Release  | for All Advisories in |
      |  Releases  |                       |  the September 2011   |
      |            |                       |  Bundled Publication  |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.1E      | fixed in Release      | fixed in Release      |
      |            | 12.2SXF               | 12.2SXF               |
      |------------+-----------------------+-----------------------|
      |  Affected  |                       |  First Fixed Release  |
      | 12.2-Based |  First Fixed Release  | for All Advisories in |
      |  Releases  |                       |  the September 2011   |
      |            |                       |  Bundled Publication  |
      |------------+-----------------------+-----------------------|
      | 12.2       | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.2B      | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.2BC     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.2BW     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2BX     | fixed in Release      | fixed in Release      |
      |            | 12.2SB                | 12.2SB                |
      |------------+-----------------------+-----------------------|
      | 12.2BY     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2BZ     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2CX     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.2CY     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2CZ     | fixed in Release      | fixed in Release      |
      |            | 12.2SB                | 12.2SB                |
      |------------+-----------------------+-----------------------|
      | 12.2DA     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2DD     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2DX     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2EU     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     |                       |
      |            | fixed in Release      |                       |
      |            | 12.2SG                | Releases up to and    |
      | 12.2EW     |                       | including 12.2(20)EW4 |
      |            | Releases up to and    | are not vulnerable.   |
      |            | including 12.2(20)EW4 |                       |
      |            | are not vulnerable.   |                       |
      |------------+-----------------------+-----------------------|
      |            |                       | Vulnerable; contact   |
      |            |                       | your support          |
      |            | Vulnerable; first     | organization per the  |
      | 12.2EWA    | fixed in Release      | instructions in the   |
      |            | 12.2SG                | Obtaining Fixed       |
      |            |                       | Software section of   |
      |            |                       | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.2EX     | 12.2(55)EX            | 12.2(55)EX3           |
      |------------+-----------------------+-----------------------|
      |            | 12.2(52)EY            |                       |
      | 12.2EY     |                       | 12.2(58)EY            |
      |            | 12.2(52)EY1b          |                       |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; migrate   | Vulnerable; migrate   |
      | 12.2EZ     | to any release in     | to any release in     |
      |            | 15.0SE                | 15.0SE                |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2FX     | fixed in Release      | fixed in Release      |
      |            | 12.2SE                | 12.2SE                |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2FY     | fixed in Release      | fixed in Release      |
      |            | 12.2EX                | 12.2EX                |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2FZ     | fixed in Release      | fixed in Release      |
      |            | 12.2SE                | 12.2SE                |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; migrate   | Vulnerable; migrate   |
      | 12.2IRA    | to any release in     | to any release in     |
      |            | 12.2IRG               | 12.2IRG               |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; migrate   | Vulnerable; migrate   |
      | 12.2IRB    | to any release in     | to any release in     |
      |            | 12.2IRG               | 12.2IRG               |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; migrate   | Vulnerable; migrate   |
      | 12.2IRC    | to any release in     | to any release in     |
      |            | 12.2IRG               | 12.2IRG               |
      |------------+-----------------------+-----------------------|
      |            |                       | Vulnerable; contact   |
      |            |                       | your support          |
      |            |                       | organization per the  |
      | 12.2IRD    | 12.2(33)IRD1          | instructions in the   |
      |            |                       | Obtaining Fixed       |
      |            |                       | Software section of   |
      |            |                       | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            |                       | Vulnerable; contact   |
      |            |                       | your support          |
      |            |                       | organization per the  |
      | 12.2IRE    | 12.2(33)IRE3          | instructions in the   |
      |            |                       | Obtaining Fixed       |
      |            |                       | Software section of   |
      |            |                       | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; migrate   | Vulnerable; migrate   |
      | 12.2IRF    | to any release in     | to any release in     |
      |            | 12.2IRG               | 12.2IRG               |
      |------------+-----------------------+-----------------------|
      | 12.2IRG    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2IXA    | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2IXB    | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2IXC    | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2IXD    | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2IXE    | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2IXF    | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2IXG    | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2IXH    | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.2JA     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2JK     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2MB     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2MC     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2MRA    | fixed in Release      | fixed in Release      |
      |            | 12.2SRD               | 12.2SRD               |
      |------------+-----------------------+-----------------------|
      | 12.2MRB    | 12.2(33)MRB5          | 12.2(33)MRB5          |
      |------------+-----------------------+-----------------------|
      |            | Releases prior to     | Releases prior to     |
      |            | 12.2(30)S are         | 12.2(30)S are         |
      |            | vulnerable; Releases  | vulnerable; Releases  |
      | 12.2S      | 12.2(30)S and later   | 12.2(30)S and later   |
      |            | are not vulnerable.   | are not vulnerable.   |
      |            | First fixed in        | First fixed in        |
      |            | Release 12.2SB        | Release 12.2SB        |
      |------------+-----------------------+-----------------------|
      |            | 12.2(31)SB20          | 12.2(31)SB2012.2(33)  |
      | 12.2SB     |                       | SB10                  |
      |            | 12.2(33)SB10          |                       |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SBC    | fixed in Release      | fixed in Release      |
      |            | 12.2SB                | 12.2SB                |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SCA    | fixed in Release      | fixed in Release      |
      |            | 12.2SCC               | 12.2SCC               |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SCB    | fixed in Release      | fixed in Release      |
      |            | 12.2SCC               | 12.2SCC               |
      |------------+-----------------------+-----------------------|
      | 12.2SCC    | 12.2(33)SCC7          | 12.2(33)SCC7          |
      |------------+-----------------------+-----------------------|
      |            | 12.2(33)SCD6          |                       |
      | 12.2SCD    |                       | 12.2(33)SCD6          |
      |            | 12.2(33)SCD7          |                       |
      |------------+-----------------------+-----------------------|
      | 12.2SCE    | 12.2(33)SCE1          | 12.2(33)SCE1          |
      |------------+-----------------------+-----------------------|
      | 12.2SCF    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | 12.2(55)SE2           | 12.2(55)SE3           |
      | 12.2SE     |                       |                       |
      |            | 12.2(58)SE            | 12.2(58)SE            |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SEA    | fixed in Release      | fixed in Release      |
      |            | 12.2SE                | 12.2SE                |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SEB    | fixed in Release      | fixed in Release      |
      |            | 12.2SE                | 12.2SE                |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SEC    | fixed in Release      | fixed in Release      |
      |            | 12.2SE                | 12.2SE                |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SED    | fixed in Release      | fixed in Release      |
      |            | 12.2SE                | 12.2SE                |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SEE    | fixed in Release      | fixed in Release      |
      |            | 12.2SE                | 12.2SE                |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SEF    | fixed in Release      | fixed in Release      |
      |            | 12.2SE                | 12.2SE                |
      |------------+-----------------------+-----------------------|
      |            | Releases prior to     | Releases prior to     |
      |            | 12.2(25)SEG4 are      | 12.2(25)SEG4 are      |
      |            | vulnerable; Releases  | vulnerable; Releases  |
      | 12.2SEG    | 12.2(25)SEG4 and      | 12.2(25)SEG4 and      |
      |            | later are not         | later are not         |
      |            | vulnerable. First     | vulnerable. First     |
      |            | fixed in Release      | fixed in Release      |
      |            | 12.2EX                | 12.2EX                |
      |------------+-----------------------+-----------------------|
      |            |                       | Releases prior to     |
      |            |                       | 12.2(53)SG4 are       |
      | 12.2SG     | 12.2(53)SG4           | vulnerable; Releases  |
      |            |                       | 12.2(53)SG4 and later |
      |            |                       | are not vulnerable.   |
      |------------+-----------------------+-----------------------|
      |            |                       | Vulnerable; contact   |
      |            |                       | your support          |
      |            | Vulnerable; first     | organization per the  |
      | 12.2SGA    | fixed in Release      | instructions in the   |
      |            | 12.2SG                | Obtaining Fixed       |
      |            |                       | Software section of   |
      |            |                       | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.2SL     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2SM     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.2SO     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2SQ     | 12.2(50)SQ3           | 12.2(50)SQ3           |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SRA    | fixed in Release      | fixed in Release      |
      |            | 12.2SRD               | 12.2SRD               |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SRB    | fixed in Release      | fixed in Release      |
      |            | 12.2SRD               | 12.2SRD               |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SRC    | fixed in Release      | fixed in Release      |
      |            | 12.2SRD               | 12.2SRD               |
      |------------+-----------------------+-----------------------|
      | 12.2SRD    | 12.2(33)SRD6          | 12.2(33)SRD6          |
      |------------+-----------------------+-----------------------|
      | 12.2SRE    | 12.2(33)SRE3          | 12.2(33)SRE4          |
      |------------+-----------------------+-----------------------|
      | 12.2STE    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2SU     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      |            | Releases prior to     | Releases prior to     |
      |            | 12.2(29b)SV1 are      | 12.2(29a)SV are       |
      |            | vulnerable; Releases  | vulnerable; Releases  |
      | 12.2SV     | 12.2(29b)SV1 and      | 12.2(29a)SV and later |
      |            | later are not         | are not vulnerable.   |
      |            | vulnerable. Migrate   | Migrate to any        |
      |            | to any release in     | release in 12.2SVD    |
      |            | 12.2SVD               |                       |
      |------------+-----------------------+-----------------------|
      | 12.2SVA    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2SVC    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2SVD    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2SVE    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2SW     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SX     | fixed in Release      | fixed in Release      |
      |            | 12.2SXF               | 12.2SXF               |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SXA    | fixed in Release      | fixed in Release      |
      |            | 12.2SXF               | 12.2SXF               |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SXB    | fixed in Release      | fixed in Release      |
      |            | 12.2SXF               | 12.2SXF               |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SXD    | fixed in Release      | fixed in Release      |
      |            | 12.2SXF               | 12.2SXF               |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SXE    | fixed in Release      | fixed in Release      |
      |            | 12.2SXF               | 12.2SXF               |
      |------------+-----------------------+-----------------------|
      | 12.2SXF    | 12.2(18)SXF17b        | 12.2(18)SXF17b        |
      |------------+-----------------------+-----------------------|
      |            | 12.2(33)SXH6          |                       |
      | 12.2SXH    |                       | 12.2(33)SXH8a         |
      |            | 12.2(33)SXH8a         |                       |
      |------------+-----------------------+-----------------------|
      |            | 12.2(33)SXI2          |                       |
      |            |                       |                       |
      | 12.2SXI    | 12.2(33)SXI2a         | 12.2(33)SXI6          |
      |            |                       |                       |
      |            | 12.2(33)SXI4a         |                       |
      |------------+-----------------------+-----------------------|
      | 12.2SXJ    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2SY     | 12.2(50)SY            | 12.2(50)SY            |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2SZ     | fixed in Release      | fixed in Release      |
      |            | 12.2SB                | 12.2SB                |
      |------------+-----------------------+-----------------------|
      | 12.2T      | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2TPC    | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.2XA     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XB     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.2XC     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XD     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XE     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XF     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XG     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XH     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XI     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XJ     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XK     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XL     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XM     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XN     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Please see Cisco      | Please see Cisco      |
      | 12.2XNA    | IOS-XE Software       | IOS-XE Software       |
      |            | Availability          | Availability          |
      |------------+-----------------------+-----------------------|
      |            | Please see Cisco      | Please see Cisco      |
      | 12.2XNB    | IOS-XE Software       | IOS-XE Software       |
      |            | Availability          | Availability          |
      |------------+-----------------------+-----------------------|
      |            | Please see Cisco      | Please see Cisco      |
      | 12.2XNC    | IOS-XE Software       | IOS-XE Software       |
      |            | Availability          | Availability          |
      |------------+-----------------------+-----------------------|
      |            | Please see Cisco      | Please see Cisco      |
      | 12.2XND    | IOS-XE Software       | IOS-XE Software       |
      |            | Availability          | Availability          |
      |------------+-----------------------+-----------------------|
      |            | Please see Cisco      | Please see Cisco      |
      | 12.2XNE    | IOS-XE Software       | IOS-XE Software       |
      |            | Availability          | Availability          |
      |------------+-----------------------+-----------------------|
      |            | Please see Cisco      | Please see Cisco      |
      | 12.2XNF    | IOS-XE Software       | IOS-XE Software       |
      |            | Availability          | Availability          |
      |------------+-----------------------+-----------------------|
      |            | Releases prior to     |                       |
      |            | 12.2(54)XO are        | Releases prior to     |
      |            | vulnerable; Releases  | 12.2(54)XO are        |
      | 12.2XO     | 12.2(54)XO and later  | vulnerable; Releases  |
      |            | are not vulnerable.   | 12.2(54)XO and later  |
      |            | First fixed in        | are not vulnerable.   |
      |            | Release 12.2SG        |                       |
      |------------+-----------------------+-----------------------|
      | 12.2XQ     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XR     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XS     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XT     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XU     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XV     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2XW     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2YA     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.2YB     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2YC     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2YD     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2YE     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YF     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YG     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YH     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YJ     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.2YK     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YL     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.2YM     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YN     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.2YO     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2YP     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YQ     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YR     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YS     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YT     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YU     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YV     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YW     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YX     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YY     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2YZ     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2ZA     | fixed in Release      | fixed in Release      |
      |            | 12.2SXF               | 12.2SXF               |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2ZB     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.2ZC     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2ZD     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2ZE     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.2ZF     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.2ZG     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.2ZH     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.2ZJ     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2ZL     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.2ZP     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.2ZU     | fixed in Release      | fixed in Release      |
      |            | 12.2SXH               | 12.2SXH               |
      |------------+-----------------------+-----------------------|
      | 12.2ZX     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2ZY     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.2ZYA    | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |  Affected  |                       |  First Fixed Release  |
      | 12.3-Based |  First Fixed Release  | for All Advisories in |
      |  Releases  |                       |  the September 2011   |
      |            |                       |  Bundled Publication  |
      |------------+-----------------------+-----------------------|
      | 12.3       | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.3B      | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.3BC     | fixed in Release      | fixed in Release      |
      |            | 12.2SCC               | 12.2SCC               |
      |------------+-----------------------+-----------------------|
      | 12.3BW     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.3JA     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.3JEA    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.3JEB    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.3JEC    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.3JED    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Releases up to and    | Releases up to and    |
      |            | including 12.3(2)JK3  | including 12.3(2)JK3  |
      |            | are not vulnerable.   | are not vulnerable.   |
      | 12.3JK     |                       | Releases 12.3(8)JK1   |
      |            | Releases 12.3(8)JK1   | and later are not     |
      |            | and later are not     | vulnerable. First     |
      |            | vulnerable. First     | fixed in Release 12.4 |
      |            | fixed in Release 12.4 |                       |
      |------------+-----------------------+-----------------------|
      | 12.3JL     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.3JX     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.3T      | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.3TPC    | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.3VA     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.3XA     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.3XB     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.3XC     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.3XD     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.3XE     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.3XF     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.3XG     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.3XI     | fixed in Release      | fixed in Release      |
      |            | 12.2SB                | 12.2SB                |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.3XJ     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.3XK     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.3XL     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      | 12.3XQ     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.3XR     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.3XS     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.3XU     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.3XW     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 12.3XX     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.3XY     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.3XZ     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.3YA     | Vulnerable; first     | Vulnerable; first     |
      |            | fixed in Release 12.4 | fixed in Release 12.4 |
      |------------+-----------------------+-----------------------|
      | 12.3YD     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.3YF     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.3YG     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.3YH     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.3YI     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.3YJ     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      | 12.3YK     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.3YM     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.3YQ     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.3YS     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.3YT     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.3YU     | fixed in Release      | fixed in Release      |
      |            | 12.4XB                | 12.4XB                |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.3YX     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.3YZ     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.3ZA     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |  Affected  |                       |  First Fixed Release  |
      | 12.4-Based |  First Fixed Release  | for All Advisories in |
      |  Releases  |                       |  the September 2011   |
      |            |                       |  Bundled Publication  |
      |------------+-----------------------+-----------------------|
      | 12.4       | 12.4(25f)             | 12.4(25f)             |
      |------------+-----------------------+-----------------------|
      | 12.4GC     | 12.4(24)GC4           | 12.4(24)GC4           |
      |------------+-----------------------+-----------------------|
      | 12.4JA     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.4JAX    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.4JDA    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.4JDC    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.4JHA    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.4JHB    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.4JHC    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.4JK     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.4JL     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.4JMA    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.4JMB    | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; migrate   | Vulnerable; migrate   |
      |            | to any release in     | to any release in     |
      |            | 12.4JA                | 12.4JA                |
      | 12.4JX     |                       |                       |
      |            | Releases up to and    | Releases up to and    |
      |            | including 12.4(21a)JX | including 12.4(21a)JX |
      |            | are not vulnerable.   | are not vulnerable.   |
      |------------+-----------------------+-----------------------|
      | 12.4JY     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.4MD     | 12.4(24)MD6 on        | 12.4(24)MD6 on        |
      |            | 28-Oct-11             | 28-Oct-11             |
      |------------+-----------------------+-----------------------|
      | 12.4MDA    | 12.4(24)MDA7          | 12.4(24)MDA7          |
      |------------+-----------------------+-----------------------|
      | 12.4MDB    | 12.4(24)MDB3          | 12.4(24)MDB3          |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.4MR     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.4MRA    | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.4MRB    | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      | 12.4SW     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | 12.4(15)T16           | 12.4(15)T16           |
      | 12.4T      |                       |                       |
      |            | 12.4(24)T6            | 12.4(24)T6            |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.4XA     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      | 12.4XB     | 12.4(2)XB12           | 12.4(2)XB12           |
      |------------+-----------------------+-----------------------|
      | 12.4XC     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.4XD     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      | 12.4XE     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.4XF     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.4XG     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      | 12.4XJ     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      | 12.4XK     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.4XL     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.4XM     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.4XN     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.4XP     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.4XQ     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.4XR     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.4XT     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      | 12.4XV     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.4XW     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.4XY     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.4XZ     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 12.4YA     | fixed in Release      | fixed in Release      |
      |            | 12.4T                 | 12.4T                 |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.4YB     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.4YD     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | 12.4(22)YE6;          | 12.4(22)YE6;          |
      |            | Available on          | Available on          |
      |            | 30-SEP-11             | 30-SEP-11             |
      | 12.4YE     |                       |                       |
      |            | 12.4(24)YE7;          | 12.4(24)YE7;          |
      |            | Available on          | Available on          |
      |            | 17-OCT-11             | 17-OCT-11             |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 12.4YG     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |  Affected  |                       |  First Fixed Release  |
      | 15.0-Based |  First Fixed Release  | for All Advisories in |
      |  Releases  |                       |  the September 2011   |
      |            |                       |  Bundled Publication  |
      |------------+-----------------------+-----------------------|
      | 15.0M      | 15.0(1)M7             | 15.0(1)M7             |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 15.0MR     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 15.0MRA    | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | 15.0(1)S4             | 15.0(1)S4             |
      |            |                       |                       |
      | 15.0S      | Cisco IOS XE devices: | Cisco IOS XE devices: |
      |            | Please see Cisco      | Please see Cisco      |
      |            | IOS-XE Software       | IOS-XE Software       |
      |            | Availability          | Availability          |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; contact   | Vulnerable; contact   |
      |            | your support          | your support          |
      |            | organization per the  | organization per the  |
      | 15.0SA     | instructions in the   | instructions in the   |
      |            | Obtaining Fixed       | Obtaining Fixed       |
      |            | Software section of   | Software section of   |
      |            | this advisory.        | this advisory.        |
      |------------+-----------------------+-----------------------|
      | 15.0SE     | Not vulnerable        | Not vulnerable        |
      |------------+-----------------------+-----------------------|
      |            | Cisco IOS XE devices: | Cisco IOS XE devices: |
      | 15.0SG     | Please see Cisco      | Please see Cisco      |
      |            | IOS-XE Software       | IOS-XE Software       |
      |            | Availability          | Availability          |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 15.0XA     | fixed in Release      | fixed in Release      |
      |            | 15.1T                 | 15.1T                 |
      |------------+-----------------------+-----------------------|
      |            | Cisco IOS XE devices: | Cisco IOS XE devices: |
      | 15.0XO     | Please see Cisco      | Please see Cisco      |
      |            | IOS-XE Software       | IOS-XE Software       |
      |            | Availability          | Availability          |
      |------------+-----------------------+-----------------------|
      |  Affected  |                       |  First Fixed Release  |
      | 15.1-Based |  First Fixed Release  | for All Advisories in |
      |  Releases  |                       |  the September 2011   |
      |            |                       |  Bundled Publication  |
      |------------+-----------------------+-----------------------|
      |            |                       | Vulnerable; contact   |
      |            |                       | your support          |
      |            |                       | organization per the  |
      | 15.1EY     | 15.1(2)EY             | instructions in the   |
      |            |                       | Obtaining Fixed       |
      |            |                       | Software section of   |
      |            |                       | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 15.1GC     | fixed in Release      | fixed in Release      |
      |            | 15.1T                 | 15.1T                 |
      |------------+-----------------------+-----------------------|
      | 15.1M      | 15.1(4)M2; Available  | 15.1(4)M2; Available  |
      |            | on 30-SEP-11          | on 30-SEP-11          |
      |------------+-----------------------+-----------------------|
      |            |                       | Vulnerable; contact   |
      |            |                       | your support          |
      |            |                       | organization per the  |
      | 15.1MR     | Not vulnerable        | instructions in the   |
      |            |                       | Obtaining Fixed       |
      |            |                       | Software section of   |
      |            |                       | this advisory.        |
      |------------+-----------------------+-----------------------|
      |            | 15.1(2)S2             | 15.1(2)S2             |
      |            |                       |                       |
      |            | 15.1(3)S              | 15.1(3)S              |
      | 15.1S      |                       |                       |
      |            | Cisco IOS XE devices: | Cisco IOS XE devices: |
      |            | Please see Cisco      | Please see Cisco      |
      |            | IOS-XE Software       | IOS-XE Software       |
      |            | Availability          | Availability          |
      |------------+-----------------------+-----------------------|
      |            | 15.1(1)T4; Available  | 15.1(1)T4; Available  |
      |            | on 09-DEC-11          | on 09-DEC-11          |
      | 15.1T      |                       |                       |
      |            | 15.1(2)T4             | 15.1(2)T4             |
      |            |                       |                       |
      |            | 15.1(3)T2             | 15.1(3)T2             |
      |------------+-----------------------+-----------------------|
      |            | Vulnerable; first     | Vulnerable; first     |
      | 15.1XB     | fixed in Release      | fixed in Release      |
      |            | 15.1T                 | 15.1T                 |
      |------------+-----------------------+-----------------------|
      |  Affected  |                       |  First Fixed Release  |
      | 15.2-Based |  First Fixed Release  | for All Advisories in |
      |  Releases  |                       |  the September 2011   |
      |            |                       |  Bundled Publication  |
      |------------------------------------------------------------|
      | There are no affected 15.2-based releases                  |
      +------------------------------------------------------------+
      
      Cisco IOS XE Software
      +--------------------
      
      +------------------------------------------------------------+
      |  Cisco  |   First Fixed   |  First Fixed Release for All   |
      | IOS XE  |     Release     |  Advisories in the September   |
      | Release |                 |    2011 Bundled Publication    |
      |---------+-----------------+--------------------------------|
      | 2.1.x   | Not vulnerable  | Vulnerable; migrate to 3.3.2S  |
      |         |                 | or later                       |
      |---------+-----------------+--------------------------------|
      | 2.2.x   | Not vulnerable  | Vulnerable; migrate to 3.3.2S  |
      |         |                 | or later                       |
      |---------+-----------------+--------------------------------|
      | 2.3.x   | Not vulnerable  | Vulnerable; migrate to 3.3.2S  |
      |         |                 | or later                       |
      |---------+-----------------+--------------------------------|
      | 2.4.x   | Not vulnerable  | Vulnerable; migrate to 3.3.2S  |
      |         |                 | or later                       |
      |---------+-----------------+--------------------------------|
      | 2.5.x   | Not vulnerable  | Vulnerable; migrate to 3.3.2S  |
      |         |                 | or later                       |
      |---------+-----------------+--------------------------------|
      | 2.6.x   | Not vulnerable  | Vulnerable; migrate to 3.3.2S  |
      |         |                 | or later                       |
      |---------+-----------------+--------------------------------|
      | 3.1.xS  | Not vulnerable  | Vulnerable; migrate to 3.3.2S  |
      |         |                 | or later                       |
      |---------+-----------------+--------------------------------|
      |         | Vulnerable;     |                                |
      | 3.1.xSG | migrate to      | Vulnerable; migrate to 3.2.0SG |
      |         | 3.2.0SG or      | or later                       |
      |         | later           |                                |
      |---------+-----------------+--------------------------------|
      | 3.2.xS  | Not vulnerable  | Vulnerable; migrate to 3.3.2S  |
      |         |                 | or later                       |
      |---------+-----------------+--------------------------------|
      | 3.2.xSG | Not vulnerable  | Not vulnerable                 |
      |---------+-----------------+--------------------------------|
      | 3.3.xS  | Not vulnerable  | 3.3.2S                         |
      |---------+-----------------+--------------------------------|
      | 3.4.xS  | Not vulnerable  | Not vulnerable                 |
      +------------------------------------------------------------+
      
      For mapping of Cisco IOS XE to Cisco IOS releases, please refer to
      the Cisco IOS XE 2 Release Notes, Cisco IOS XE 3S Release Notes, and
      Cisco IOS XE 3SG Release Notes.
      
      Cisco IOS XR Software
      +--------------------
      
      Cisco IOS XR Software is not affected by any of the vulnerabilities
      in the September 2011 bundled publication.
      
      Workarounds
      ===========
      
      It is possible to mitigate the vulnerabilities in this advisory by
      disabling the translation of embedded IP addresses in the payload of
      IP packets. Disabling NAT for the different protocols requires
      different configurations. For some protocols, a single command can be
      used. Other protocols require individual NAT translation rules be
      added to the configuration.
      
      NAT LDAP Vulnerability Mitigation
      +---------------------------------
      
      To disable NAT of LDAP, port-based address translation needs to be
      configured to disable LDAP inspection using the no-payload keyword.
      This will still allow the NAT of LDAP packets at Layer 3 (non-port
      specific). Translation of other non-LDAP protocols translation will
      not be affected. Applications that use embedded IP addresses in LDAP,
      such as NetMeeting Directory, will be negatively impacted if the
      embedded IP addresses need to be translated.
      
      The following is an example configuration that includes the
      mitigation for two NAT rules.
      
      
          !-- NAT rule for port TCP/389 to disable IP NAT for LDAP translation
          !-- Takes precedence over the non-port translation rule.
      
          ip nat outside source static tcp 192.168.0.1 389 192.168.1.1 389 no-payload
          ip nat outside source static tcp 192.168.0.3 389 192.168.1.3 389 no-payload
      
          !-- Translation rule for all other protocols
      
          ip nat outside source static 192.168.0.1 192.168.1.1
          ip nat outside source static 192.168.0.3 192.168.1.3
      
          interface GigabitEthernet0/0
            ip nat inside
      
          interface GigabitEthernet0/1
            ip nat outside
      
      Each NAT translation rule in the configuration will need to be
      updated to include a per-port rule that disables translation of TCP
      packets on port 389.
      
      NAT for SIP over TCP DoS Vulnerability Mitigation
      +------------------------------------------------
      
      Mitigation for this vulnerability consists of disabling NAT for SIP
      over the TCP transport by using the "no ip nat service sip tcp port
      5060" global configuration command.
      
      NAT of Crafted SIP over UDP Packets DoS Vulnerability Mitigation
      +---------------------------------------------------------------
      
      Mitigation of these vulnerabilities consists of disabling NAT for SIP
      over the UDP transport by using the "no ip nat service sip udp port
      5060" global configuration command.
      
      NAT for Crafted H.323 Packets DoS Vulnerability Mitigation
      +---------------------------------------------------------
      
      Mitigation for this vulnerability consists of disabling NAT for H.323
      and H.225.0 using the "no ip nat service h225" global configuration
      command.
      
      Obtaining Fixed Software
      ========================
      
      Cisco has released free software updates that address this
      vulnerability. 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 vulnerabilities described in this advisory.
      
      The NAT LDAP vulnerability and the NAT of crafted SIP packets
      vulnerabilities were found during internal Cisco testing. The NAT
      SIP/TCP vulnerability, provider edge MPLS NAT of SIP over UDP packets
      vulnerability, and NAT of H.323 packets DoS vulnerabilities were found
      during troubleshooting of TAC service requests.
      
      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-20110928-nat.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 1.0   | 2011-Sep-28   | Initial 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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      Copyright 2010-2011 Cisco Systems, Inc. All rights reserved.
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