[apops] Cisco Security Advisory: Cisco IOS Software Session Initiation P

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  • Subject: [apops] Cisco Security Advisory: Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerabilities
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  • Date: Wed, 22 Sep 2010 18:00:00 +0200
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      Cisco Security Advisory: Cisco IOS Software Session Initiation
      Protocol Denial of Service Vulnerabilities
      
      Advisory ID: cisco-sa-20100922-sip
      
      http://www.cisco.com/warp/public/707/cisco-sa-20100922-sip.shtml
      
      Revision 1.0
      
      For Public Release 2010 September 22 1600 UTC (GMT)
      
      - ---------------------------------------------------------------------
      
      Summary
      =======
      
      Multiple vulnerabilities exist in the Session Initiation Protocol
      (SIP) implementation in Cisco IOS^  Software that could allow an
      unauthenticated, remote attacker to cause a reload of an affected
      device when SIP operation is enabled.
      
      Cisco has released free software updates that address these
      vulnerabilities. There are no workarounds for devices that must run
      SIP; however, mitigations are available to limit exposure to the
      vulnerabilities.
      
      This advisory is posted at 
      http://www.cisco.com/warp/public/707/cisco-sa-20100922-sip.shtml
      
      Note:  The September 22, 2010, Cisco IOS Software Security Advisory
      bundled publication includes six Cisco Security Advisories. Five of
      the advisories address vulnerabilities in Cisco IOS Software, and one
      advisory addresses vulnerabilities in Cisco Unified Communications
      Manager. Each advisory lists the releases that correct the
      vulnerability or vulnerabilities detailed in the advisory. The table
      at the following URL lists releases that correct all Cisco IOS
      Software vulnerabilities that have been published on September 22,
      2010, or earlier:
      
      http://www.cisco.com/warp/public/707/cisco-sa-20100922-bundle.shtml
      
      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_sep10.html
      
      Cisco Unified Communications Manager (CUCM) is affected by the
      vulnerabilities described in this advisory. Two separate Cisco
      Security Advisories have been published to disclose the
      vulnerabilities that affect the Cisco Unified Communications Manager
      at the following locations:
      
      http://www.cisco.com/warp/public/707/cisco-sa-20090826-cucm.shtml
      
      http://www.cisco.com/warp/public/707/cisco-sa-20100922-cucm.shtml
      
      Affected Products
      =================
      
      These vulnerabilities only affect devices running Cisco IOS Software
      with SIP voice services enabled.
      
      Vulnerable Products
      +------------------
      
      Cisco devices are affected when they are running affected Cisco IOS
      Software versions that are configured to process SIP messages.
      
      Recent versions of Cisco IOS Software do not process SIP messages by
      default. Creating a dial peer by issuing the dial-peer voice command
      will start the SIP processes, causing the Cisco IOS device to process
      SIP messages. In addition, several features within Cisco Unified
      Communications Manager Express, such as ePhones, will also
      automatically start the SIP process when they are configured, causing
      the device to start processing SIP messages. An example of an
      affected configuration follows:
      
          dial-peer voice <Voice dial-peer tag> voip
           ...
          !
      
      In addition to inspecting the Cisco IOS device configuration for a
      dial-peer command that causes the device to process SIP messages,
      administrators can also use the show processes | include SIP command
      to determine whether Cisco IOS Software is running the processes that
      handle SIP messages. In the following example, the presence of the
      processes CCSIP_UDP_SOCKET or CCSIP_TCP_SOCKET indicates that the
      Cisco IOS device will process SIP messages:
      
          Router# show processes | include SIP
           149 Mwe 40F48254            4          1    400023108/24000  0 CCSIP_UDP_SOCKET
           150 Mwe 40F48034            4          1    400023388/24000  0 CCSIP_TCP_SOCKET
      
      Note: Because there are several ways a device running Cisco IOS
      Software can start processing SIP messages, it is recommended that
      the show processes | include SIP command be used to determine whether
      the device is processing SIP messages instead of relying on the
      presence of specific configuration commands.
      
      Cisco Unified Border Element images are also affected by two of these
      vulnerabilities.
      
      Note: The Cisco Unified Border Element feature (previously known as
      the Cisco Multiservice IP-to-IP Gateway) is a special Cisco IOS
      Software image that runs on Cisco multiservice gateway platforms. It
      provides a network-to-network interface point for billing, security,
      call admission control, quality of service, and signaling
      interworking.
      
      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 12.3(26) with an installed image name of
      C2500-IS-L:
      
          Router# show version
          Cisco Internetwork Operating System Software
          IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(26), RELEASE SOFTWARE (fc2)
          Technical Support: http://www.cisco.com/techsupport
          Copyright (c) 1986-2008 by cisco Systems, Inc.
          Compiled Mon 17-Mar-08 14:39 by dchih
      
          !--- output truncated
      
      
      
      The following example identifies a Cisco product that is running
      Cisco IOS Software Release 12.4(20)T with an installed image name of
      C1841-ADVENTERPRISEK9-M:
      
          Router# show version
          Cisco IOS Software, 1841 Software (C1841-ADVENTERPRISEK9-M), Version 12.4(20)T,
              RELEASE SOFTWARE (fc3)
          Technical Support: http://www.cisco.com/techsupport
          Copyright (c) 1986-2008 by Cisco Systems, Inc.
          Compiled Thu 10-Jul-08 20:25 by prod_rel_team
      
          !--- output truncated
      
      
      Additional information about Cisco IOS Software release naming
      conventions is available in "White Paper: Cisco IOS Reference Guide"
      at the following link: http://www.cisco.com/warp/public/620/1.html
      
      Note: CUCM is affected by the vulnerabilities described in this
      advisory. Two separate Cisco Security Advisories have been published
      to disclose the vulnerabilities that affect the Cisco Unified
      Communications Manager at the following locations:
      
      http://www.cisco.com/warp/public/707/cisco-sa-20090826-cucm.shtml
      
      http://www.cisco.com/warp/public/707/cisco-sa-20100922-cucm.shtml
      
      Products Confirmed Not Vulnerable
      +--------------------------------
      
      The SIP Application Layer Gateway (ALG), which is used by the Cisco
      IOS NAT and firewall features of Cisco IOS Software, is not affected
      by these vulnerabilities.
      
      Cisco IOS XR Software is not affected by these vulnerabilities.
      
      No other Cisco products are currently known to be affected by these
      vulnerabilities.
      
      Details
      =======
      
      SIP is a popular signaling protocol that is used to manage voice and
      video calls across IP networks such as the Internet. SIP is
      responsible for handling all aspects of call setup and termination.
      Voice and video are the most popular types of sessions that SIP
      handles, but the protocol has the flexibility to accommodate other
      applications that require call setup and termination. SIP call
      signaling can use UDP (port 5060), TCP (port 5060), or Transport
      Layer Security (TLS; TCP port 5061) as the underlying transport
      protocol.
      
      Three vulnerabilities exist in the SIP implementation in Cisco IOS
      Software that may allow a remote attacker to cause an affected device
      to reload. These vulnerabilities are triggered when the device
      running Cisco IOS Software processes crafted SIP messages.
      
      Note: In cases where SIP is running over TCP transport, a TCP
      three-way handshake is necessary to exploit these vulnerabilities.
      
      These vulnerabilities are addressed by Cisco bug IDs CSCta20040, 
      CSCsz43987 and CSCtf72678, and have been assigned Common 
      Vulnerabilities and Exposures (CVE) IDs CVE-2010-2835, CVE-2009-2051
      and CVE-2010-2834, respectively.
      
      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
      
      CSCta20040 - Device crashes when receiving crafted SIP message
      
      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
      
      CSCsz43987 - IOS coredump when sending crafted packets
      
      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
      
      CSCtf72678 - IOS Coredump Generated when sending crafted packets
      
      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 the vulnerabilities in this advisory may
      result in a reload of the device. Repeated exploitation could result
      in a sustained denial of service condition.
      
      Software Versions and Fixes
      ===========================
      
      When considering software upgrades, also consult 
      http://www.cisco.com/go/psirt and any subsequent advisories to 
      determine exposure and a complete upgrade solution.
      
      In all cases, customers should exercise caution to be certain the
      devices to be upgraded contain sufficient memory and that current
      hardware and software configurations will continue to be supported
      properly by the new release. If the information is not clear, contact
      the Cisco Technical Assistance Center (TAC) or your contracted
      maintenance provider for assistance.
      
      Each row of the 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 2010 Bundle 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 for  |
      | 12.0-Based | First Fixed Release for  |   All Advisories in the   |
      |  Releases  |      This Advisory       |   September 2010 Bundle   |
      |            |                          |        Publication        |
      |-------------------------------------------------------------------|
      | There are no affected 12.0-based releases                         |
      |-------------------------------------------------------------------|
      |  Affected  |                          |  First Fixed Release for  |
      | 12.1-Based | First Fixed Release for  |   All Advisories in the   |
      |  Releases  |      This Advisory       |   September 2010 Bundle   |
      |            |                          |        Publication        |
      |-------------------------------------------------------------------|
      | There are no affected 12.1-based releases                         |
      |-------------------------------------------------------------------|
      |  Affected  |                          |  First Fixed Release for  |
      | 12.2-Based | First Fixed Release for  |   All Advisories in the   |
      |  Releases  |      This Advisory       |   September 2010 Bundle   |
      |            |                          |        Publication        |
      |------------+--------------------------+---------------------------|
      | 12.2       | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      | 12.2B      | Not Vulnerable           |                           |
      |            |                          | Releases up to and        |
      |            |                          | including 12.2(2)B7 are   |
      |            |                          | not vulnerable.           |
      |------------+--------------------------+---------------------------|
      | 12.2BC     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2BW     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; first fixed   |
      |            |                          | in 12.2SB                 |
      | 12.2BX     | Not Vulnerable           |                           |
      |            |                          | Releases up to and        |
      |            |                          | including 12.2(15)BX are  |
      |            |                          | not vulnerable.           |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      | 12.2BY     | Not Vulnerable           |                           |
      |            |                          | Releases up to and        |
      |            |                          | including 12.2(2)BY3 are  |
      |            |                          | not vulnerable.           |
      |------------+--------------------------+---------------------------|
      | 12.2BZ     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2CX     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2CY     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2CZ     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.2DA     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2DD     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2DX     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2EW     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2EWA    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2EX     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2EY     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2EZ     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2FX     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2FY     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2FZ     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2IRA    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2IRB    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2IRC    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2IRD    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2IRE    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2IXA    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2IXB    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2IXC    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2IXD    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2IXE    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2IXF    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2IXG    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2IXH    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.2JA     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2JK     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2MB     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      |            |                          | Releases up to and        |
      |            |                          | including 12.2(15)MC1 are |
      | 12.2MC     | Not Vulnerable           | not vulnerable. Releases  |
      |            |                          | 12.2(15)MC2b and later    |
      |            |                          | are not vulnerable; first |
      |            |                          | fixed in 12.4T            |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2MRA    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.2MRB    | Not Vulnerable           | 12.2(33)MRB2              |
      |------------+--------------------------+---------------------------|
      |            |                          | Releases prior to 12.2    |
      | 12.2S      | Not Vulnerable           | (30)S are vulnerable,     |
      |            |                          | release 12.2(30)S and     |
      |            |                          | later are not vulnerable  |
      |------------+--------------------------+---------------------------|
      |            |                          | 12.2(31)SB19              |
      |            |                          |                           |
      | 12.2SB     | Not Vulnerable           | Releases prior to 12.2    |
      |            |                          | (33)SB5 are vulnerable,   |
      |            |                          | release 12.2(33)SB5 and   |
      |            |                          | later are not vulnerable  |
      |------------+--------------------------+---------------------------|
      | 12.2SBC    | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.2SB                 |
      |------------+--------------------------+---------------------------|
      | 12.2SCA    | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.2SCB                |
      |------------+--------------------------+---------------------------|
      | 12.2SCB    | Not Vulnerable           | 12.2(33)SCB9              |
      |------------+--------------------------+---------------------------|
      | 12.2SCC    | Not Vulnerable           | 12.2(33)SCC5              |
      |------------+--------------------------+---------------------------|
      | 12.2SCD    | Not Vulnerable           | 12.2(33)SCD3              |
      |------------+--------------------------+---------------------------|
      | 12.2SE     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SEA    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SEB    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SEC    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SED    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SEE    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SEF    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SEG    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      |            |                          | Releases prior to 12.2    |
      |            |                          | (40)SG are vulnerable,    |
      | 12.2SG     | Not Vulnerable           | release 12.2(40)SG and    |
      |            |                          | later are not vulnerable; |
      |            |                          | migrate to any release in |
      |            |                          | 12.2SGA                   |
      |------------+--------------------------+---------------------------|
      | 12.2SGA    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SL     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SM     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SO     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SQ     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      |            |                          | Releases prior to 12.2    |
      | 12.2SRA    | Not Vulnerable           | (33)SRA6 are vulnerable,  |
      |            |                          | release 12.2(33)SRA6 and  |
      |            |                          | later are not vulnerable  |
      |------------+--------------------------+---------------------------|
      |            |                          | Releases prior to 12.2    |
      | 12.2SRB    | Not Vulnerable           | (33)SRB1 are vulnerable,  |
      |            |                          | release 12.2(33)SRB1 and  |
      |            |                          | later are not vulnerable  |
      |------------+--------------------------+---------------------------|
      | 12.2SRC    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SRD    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SRE    | Not Vulnerable           | 12.2(33)SRE1              |
      |------------+--------------------------+---------------------------|
      | 12.2STE    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SU     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            |                          | Releases prior to 12.2    |
      |            |                          | (29b)SV1 are vulnerable,  |
      | 12.2SV     | Not Vulnerable           | release 12.2(29b)SV1 and  |
      |            |                          | later are not vulnerable; |
      |            |                          | migrate to any release in |
      |            |                          | 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            |
      |------------+--------------------------+---------------------------|
      |            |                          | Releases up to and        |
      |            |                          | including 12.2(21)SW1 are |
      | 12.2SW     | Not Vulnerable           | not vulnerable. Releases  |
      |            |                          | 12.2(25)SW12 and later    |
      |            |                          | are not vulnerable; first |
      |            |                          | fixed in 12.4T            |
      |------------+--------------------------+---------------------------|
      |            |                          | Releases up to and        |
      | 12.2SX     | Not Vulnerable           | including 12.2(14)SX2 are |
      |            |                          | not vulnerable.           |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2SXA    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2SXB    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2SXD    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2SXE    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Releases prior to 12.2    |
      | 12.2SXF    | Not Vulnerable           | (18)SXF11 are vulnerable, |
      |            |                          | release 12.2(18)SXF11 and |
      |            |                          | later are not vulnerable  |
      |------------+--------------------------+---------------------------|
      | 12.2SXH    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SXI    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2SY     | Vulnerable; migrate to   | Not Vulnerable            |
      |            | any release in 12.2S     |                           |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2SZ     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.2T      | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2TPC    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.2XA     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XB     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XC     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XD     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XE     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2XF     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2XG     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XH     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XI     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XJ     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XK     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XL     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XM     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XN     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.2SB                 |
      |------------+--------------------------+---------------------------|
      | 12.2XNA    | Please see Cisco IOS-XE  | Please see Cisco IOS-XE   |
      |            | Software Availability    | Software Availability     |
      |------------+--------------------------+---------------------------|
      | 12.2XNB    | Please see Cisco IOS-XE  | Please see Cisco IOS-XE   |
      |            | Software Availability    | Software Availability     |
      |------------+--------------------------+---------------------------|
      | 12.2XNC    | Please see Cisco IOS-XE  | Please see Cisco IOS-XE   |
      |            | Software Availability    | Software Availability     |
      |------------+--------------------------+---------------------------|
      | 12.2XND    | Please see Cisco IOS-XE  | Please see Cisco IOS-XE   |
      |            | Software Availability    | Software Availability     |
      |------------+--------------------------+---------------------------|
      | 12.2XNE    | Please see Cisco IOS-XE  | Please see Cisco IOS-XE   |
      |            | Software Availability    | Software Availability     |
      |------------+--------------------------+---------------------------|
      | 12.2XNF    | Please see Cisco IOS-XE  | Please see Cisco IOS-XE   |
      |            | Software Availability    | Software Availability     |
      |------------+--------------------------+---------------------------|
      | 12.2XO     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2XQ     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XR     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2XS     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XT     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XU     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XV     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2XW     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2YA     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YB     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YC     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YD     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YE     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YF     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.2YG     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YH     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YJ     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YK     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YL     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.2YM     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YN     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.2YO     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2YP     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2YQ     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2YR     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2YS     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YT     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YU     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Releases prior to 12.2    |
      | 12.2YV     | Not Vulnerable           | (11)YV1 are vulnerable,   |
      |            |                          | release 12.2(11)YV1 and   |
      |            |                          | later are not vulnerable  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YW     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YX     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YY     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2YZ     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.2ZA     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      |            |                          | Releases up to and        |
      | 12.2ZB     | Not Vulnerable           | including 12.2(8)ZB are   |
      |            |                          | not vulnerable.           |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2ZC     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2ZD     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.2ZE     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2ZF     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.2ZG     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.2ZH     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2ZJ     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2ZL     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2ZP     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2ZU     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.2ZX     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2ZY     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.2ZYA    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |  Affected  |                          |  First Fixed Release for  |
      | 12.3-Based | First Fixed Release for  |   All Advisories in the   |
      |  Releases  |      This Advisory       |   September 2010 Bundle   |
      |            |                          |        Publication        |
      |------------+--------------------------+---------------------------|
      | 12.3       | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3B      | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3BC     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.3BW     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.3EU     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 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       |                           |
      |            | including 12.3(2)JK3 are | Releases up to and        |
      |            | not vulnerable.          | including 12.3(2)JK3 are  |
      | 12.3JK     |                          | not vulnerable. Releases  |
      |            | Releases 12.3(8)JK1 and  | 12.3(8)JK1 and later are  |
      |            | later are not            | not vulnerable; first     |
      |            | vulnerable; first fixed  | fixed in 12.4T            |
      |            | in 12.4T                 |                           |
      |------------+--------------------------+---------------------------|
      | 12.3JL     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.3JX     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      |            | Vulnerable; first fixed  |                           |
      |            | in 12.4T                 |                           |
      | 12.3T      |                          | Vulnerable; first fixed   |
      |            | Releases up to and       | in 12.4T                  |
      |            | including 12.3(4)T11 are |                           |
      |            | not vulnerable.          |                           |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.3TPC    | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.3VA     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3XA     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.3XB     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.3XC     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3XD     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3XE     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            | Vulnerable; Contact your | Vulnerable; Contact your  |
      |            | support organization per | support organization per  |
      | 12.3XF     | the instructions in      | the instructions in       |
      |            | Obtaining Fixed Software | Obtaining Fixed Software  |
      |            | section of this advisory | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.3XG     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            | Releases prior to 12.3   | Releases prior to 12.3(7) |
      |            | (7)XI11 are vulnerable,  | XI11 are vulnerable,      |
      | 12.3XI     | release 12.3(7)XI11 and  | release 12.3(7)XI11 and   |
      |            | later are not vulnerable | later are not vulnerable; |
      |            |                          | first fixed in 12.2SB     |
      |------------+--------------------------+---------------------------|
      | 12.3XJ     | Vulnerable; migrate to   | Vulnerable; first fixed   |
      |            | any release in 12.4XN    | in 12.4XR                 |
      |------------+--------------------------+---------------------------|
      | 12.3XK     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3XL     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3XQ     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3XR     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3XS     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            | Vulnerable; first fixed  |                           |
      |            | in 12.4T                 |                           |
      | 12.3XU     |                          | Vulnerable; first fixed   |
      |            | Releases up to and       | in 12.4T                  |
      |            | including 12.3(8)XU1 are |                           |
      |            | not vulnerable.          |                           |
      |------------+--------------------------+---------------------------|
      | 12.3XW     | Vulnerable; migrate to   | Vulnerable; first fixed   |
      |            | any release in 12.4XN    | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3XX     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3XY     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3XZ     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3YA     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3YD     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3YF     | Vulnerable; migrate to   | Vulnerable; first fixed   |
      |            | any release in 12.4XN    | in 12.4XR                 |
      |------------+--------------------------+---------------------------|
      | 12.3YG     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3YH     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3YI     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3YJ     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            | Releases prior to 12.3   |                           |
      |            | (11)YK3 are vulnerable,  |                           |
      | 12.3YK     | release 12.3(11)YK3 and  | Vulnerable; first fixed   |
      |            | later are not            | in 12.4T                  |
      |            | vulnerable; first fixed  |                           |
      |            | in 12.4T                 |                           |
      |------------+--------------------------+---------------------------|
      | 12.3YM     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3YQ     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            | Vulnerable; first fixed  |                           |
      |            | in 12.4T                 |                           |
      | 12.3YS     |                          | Vulnerable; first fixed   |
      |            | Releases up to and       | in 12.4T                  |
      |            | including 12.3(11)YS1    |                           |
      |            | are not vulnerable.      |                           |
      |------------+--------------------------+---------------------------|
      | 12.3YT     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3YU     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.3YX     | Vulnerable; migrate to   | Vulnerable; first fixed   |
      |            | any release in 12.4XN    | in 12.4XR                 |
      |------------+--------------------------+---------------------------|
      |            | Vulnerable; Contact your | Vulnerable; Contact your  |
      |            | support organization per | support organization per  |
      | 12.3YZ     | the instructions in      | the instructions in       |
      |            | Obtaining Fixed Software | Obtaining Fixed Software  |
      |            | section of this advisory | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.3ZA     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |  Affected  |                          |  First Fixed Release for  |
      | 12.4-Based | First Fixed Release for  |   All Advisories in the   |
      |  Releases  |      This Advisory       |   September 2010 Bundle   |
      |            |                          |        Publication        |
      |------------+--------------------------+---------------------------|
      | 12.4       | 12.4(25d)                | 12.4(25d)                 |
      |------------+--------------------------+---------------------------|
      | 12.4GC     | 12.4(24)GC2              | 12.4(24)GC2               |
      |------------+--------------------------+---------------------------|
      | 12.4JA     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.4JDA    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.4JDC    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.4JDD    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.4JHA    | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.4JHB    | 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            |
      |------------+--------------------------+---------------------------|
      | 12.4JX     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.4JY     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      | 12.4MD     | Not Vulnerable           | 12.4(24)MD2               |
      |------------+--------------------------+---------------------------|
      | 12.4MDA    | Not Vulnerable           | 12.4(22)MDA4              |
      |------------+--------------------------+---------------------------|
      | 12.4MR     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4MRA               | in 12.4MRA                |
      |------------+--------------------------+---------------------------|
      | 12.4MRA    | 12.4(20)MRA1             | 12.4(20)MRA1              |
      |------------+--------------------------+---------------------------|
      | 12.4SW     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            | 12.4(15)T14              | 12.4(15)T14               |
      |            |                          |                           |
      | 12.4T      | 12.4(24)T4               | 12.4(24)T4                |
      |            |                          |                           |
      |            | 12.4(20)T6               | 12.4(20)T6                |
      |------------+--------------------------+---------------------------|
      | 12.4XA     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.4XB     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.4XC     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.4XD     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            | Releases prior to 12.4   | Releases prior to 12.4(6) |
      |            | (6)XE5 are vulnerable,   | XE5 are vulnerable,       |
      | 12.4XE     | release 12.4(6)XE5 and   | release 12.4(6)XE5 and    |
      |            | later are not            | later are not vulnerable; |
      |            | vulnerable; first fixed  | first fixed in 12.4T      |
      |            | in 12.4T                 |                           |
      |------------+--------------------------+---------------------------|
      | 12.4XF     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.4XG     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.4XJ     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.4XK     | Not Vulnerable           | Vulnerable; first fixed   |
      |            |                          | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            | Vulnerable; Contact your | Vulnerable; Contact your  |
      |            | support organization per | support organization per  |
      | 12.4XL     | the instructions in      | the instructions in       |
      |            | Obtaining Fixed Software | Obtaining Fixed Software  |
      |            | section of this advisory | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            | Releases up to and       |                           |
      |            | including 12.4(15)XM are |                           |
      |            | not vulnerable.          |                           |
      | 12.4XM     |                          | Vulnerable; first fixed   |
      |            | Releases 12.4(15)XM3 and | in 12.4T                  |
      |            | later are not            |                           |
      |            | vulnerable; first fixed  |                           |
      |            | in 12.4T                 |                           |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.4XN     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            | Vulnerable; Contact your | Vulnerable; Contact your  |
      |            | support organization per | support organization per  |
      | 12.4XP     | the instructions in      | the instructions in       |
      |            | Obtaining Fixed Software | Obtaining Fixed Software  |
      |            | section of this advisory | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.4XQ     | Not Vulnerable           | 12.4(15)XQ6; Available on |
      |            |                          | 22-SEP-10                 |
      |------------+--------------------------+---------------------------|
      |            |                          | 12.4(15)XR9               |
      | 12.4XR     | Not Vulnerable           |                           |
      |            |                          | 12.4(22)XR7               |
      |------------+--------------------------+---------------------------|
      | 12.4XT     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            | Vulnerable; Contact your | Vulnerable; Contact your  |
      |            | support organization per | support organization per  |
      | 12.4XV     | the instructions in      | the instructions in       |
      |            | Obtaining Fixed Software | Obtaining Fixed Software  |
      |            | section of this advisory | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.4XW     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.4XY     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.4XZ     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      | 12.4YA     | Vulnerable; first fixed  | Vulnerable; first fixed   |
      |            | in 12.4T                 | in 12.4T                  |
      |------------+--------------------------+---------------------------|
      |            | Vulnerable; Contact your | Vulnerable; Contact your  |
      |            | support organization per | support organization per  |
      | 12.4YB     | the instructions in      | the instructions in       |
      |            | Obtaining Fixed Software | Obtaining Fixed Software  |
      |            | section of this advisory | section of this advisory  |
      |------------+--------------------------+---------------------------|
      |            |                          | Vulnerable; Contact your  |
      |            |                          | support organization per  |
      | 12.4YD     | Not Vulnerable           | the instructions in       |
      |            |                          | Obtaining Fixed Software  |
      |            |                          | section of this advisory  |
      |------------+--------------------------+---------------------------|
      | 12.4YE     | Not Vulnerable           | 12.4(24)YE1               |
      |------------+--------------------------+---------------------------|
      | 12.4YG     | Not Vulnerable           | 12.4(24)YG3               |
      |------------+--------------------------+---------------------------|
      |  Affected  |                          |  First Fixed Release for  |
      | 15.0-Based | First Fixed Release for  |   All Advisories in the   |
      |  Releases  |      This Advisory       |   September 2010 Bundle   |
      |            |                          |        Publication        |
      |------------+--------------------------+---------------------------|
      | 15.0M      | 15.0(1)M3                | 15.0(1)M3                 |
      |------------+--------------------------+---------------------------|
      |            | Cisco 7600 and 10000     | Cisco 7600 and 10000      |
      |            | Series routers: Not      | Series routers: 15.0(1)S1 |
      |            | Vulnerable               | (available early October  |
      |            |                          | 2010).                    |
      | 15.0S      | Cisco ASR 1000 Series    |                           |
      |            | routes: Please see Cisco | Cisco ASR 1000 Series     |
      |            | IOS-XE Software          | routes: Please see Cisco  |
      |            | Availability             | IOS-XE Software           |
      |            |                          | Availability              |
      |------------+--------------------------+---------------------------|
      | 15.0XA     | 15.0(1)XA4               | Vulnerable; first fixed   |
      |            |                          | in 15.1T                  |
      |------------+--------------------------+---------------------------|
      | 15.0XO     | Not Vulnerable           | Not Vulnerable            |
      |------------+--------------------------+---------------------------|
      |  Affected  |                          |  First Fixed Release for  |
      | 15.1-Based | First Fixed Release for  |   All Advisories in the   |
      |  Releases  |      This Advisory       |   September 2010 Bundle   |
      |            |                          |        Publication        |
      |------------+--------------------------+---------------------------|
      |            | 15.1(2)T0a               |                           |
      | 15.1T      |                          | 15.1(2)T1                 |
      |            | 15.1(1)T1                |                           |
      |------------+--------------------------+---------------------------|
      | 15.1XB     | 15.1(1)XB                | Vulnerable; first fixed   |
      |            |                          | in 15.1T                  |
      +-------------------------------------------------------------------+
      
      Cisco IOS XE Software
      +--------------------
      
      +-------------------------------------------------------------------+
      | Cisco IOS |   First Fixed    |    First Fixed Release for All     |
      |    XE     | Release for This |  Advisories in the September 2010  |
      |  Release  |     Advisory     |         Bundle Publication         |
      |-----------+------------------+------------------------------------|
      | 2.1.x     | Not Vulnerable   | Not Vulnerable                     |
      |-----------+------------------+------------------------------------|
      | 2.2.x     | Not Vulnerable   | Not Vulnerable                     |
      |-----------+------------------+------------------------------------|
      | 2.3.x     | Not Vulnerable   | Not Vulnerable                     |
      |-----------+------------------+------------------------------------|
      | 2.4.x     | Not Vulnerable   | Not Vulnerable                     |
      |-----------+------------------+------------------------------------|
      |           | Vulnerable;      | Vulnerable; migrate to 2.6.2 or    |
      | 2.5.x     | migrate to 2.6.2 | later                              |
      |           | or later         |                                    |
      |-----------+------------------+------------------------------------|
      | 2.6.x     | 2.6.1            | 2.6.2                              |
      |-----------+------------------+------------------------------------|
      | 3.1.xS    | Not Vulnerable   | Not Vulnerable                     |
      +-------------------------------------------------------------------+
      
      For mapping of Cisco IOS XE to Cisco IOS releases, please refer to
      the Cisco IOS XE 2 and Cisco IOS XE 3S Release Notes.
      
      Cisco IOS XR System Software
      +---------------------------
      
      Cisco IOS XR Software is not affected by the vulnerabilities
      disclosed in the September 22, 2010, Cisco IOS Software Security
      Advisory bundled publication.
      
      Workarounds
      ===========
      
      If the affected Cisco IOS device requires SIP for VoIP services, SIP
      cannot be disabled, and no workarounds are available. Users are
      advised to apply mitigation techniques to help limit exposure to the
      vulnerabilities. Mitigation consists of allowing only legitimate
      devices to connect to affected devices. To increase effectiveness,
      the mitigation must be coupled with anti-spoofing measures on the
      network edge. This action is required because SIP can use UDP as the
      transport protocol.
      
      Additional mitigations that can be deployed on Cisco devices within
      the network are available in the companion document "Cisco Applied
      Mitigation Bulletin:Identifying and Mitigating Exploitation of the
      Multiple Vulnerabilities in Cisco Voice Products", which is available
      at the following location:
      http://www.cisco.com/warp/public/707/cisco-amb-20100922-voice.shtml
      
      Disabling SIP Listening Ports
      +----------------------------
      
      For devices that do not require SIP to be enabled, the simplest and
      most effective workaround is to disable SIP processing on the device.
      Some versions of Cisco IOS Software allow administrators to disable
      SIP with the following commands:
      
          sip-ua
           no transport udp
           no transport tcp
           no transport tcp tls
      
      warning Warning: When applying this workaround to devices that are
      processing Media Gateway Control Protocol (MGCP) or H.323 calls, the
      device will not stop SIP processing while active calls are being
      processed. Under these circumstances, this workaround should be
      implemented during a maintenance window when active calls can be
      briefly stopped.
      
      The show udp connections, show tcp brief all, and show processes |
      include SIP commands can be used to confirm that the SIP UDP and TCP
      ports are closed after applying this workaround.
      
      Depending on the Cisco IOS Software version in use, the output from
      the show ip sockets command may still show the SIP ports open, but
      sending traffic to them will cause the SIP process to emit the
      following message:
      
          *Jun 2 11:36:47.691: sip_udp_sock_process_read: SIP UDP Listener is DISABLED
      
      Control Plane Policing
      +---------------------
      
      For devices that need to offer SIP services, it is possible to use
      Control Plane Policing (CoPP) to block SIP traffic to the device from
      untrusted sources. Cisco IOS Releases 12.0S, 12.2SX, 12.2S, 12.3T,
      12.4, and 12.4T support the CoPP feature. CoPP may be configured on a
      device to protect the management and control planes to minimize the
      risk and effectiveness of direct infrastructure attacks by explicitly
      permitting only authorized traffic sent to infrastructure devices in
      accordance with existing security policies and configurations. The
      following example can be adapted to specific network configurations:
      
      
          !-- The 192.168.1.0/24 network and the 172.16.1.1 host are trusted.
          !-- Everything else is not trusted. The following access list is used
          !-- to determine what traffic needs to be dropped by a control plane
          !-- policy (the CoPP feature.) If the access list matches (permit)
          !-- then traffic will be dropped and if the access list does not
          !-- match (deny) then traffic will be processed by the router.
      
          access-list 100 deny udp 192.168.1.0 0.0.0.255 any eq 5060
          access-list 100 deny tcp 192.168.1.0 0.0.0.255 any eq 5060
          access-list 100 deny tcp 192.168.1.0 0.0.0.255 any eq 5061
          access-list 100 deny udp host 172.16.1.1 any eq 5060
          access-list 100 deny tcp host 172.16.1.1 any eq 5060
          access-list 100 deny tcp host 172.16.1.1 any eq 5061
          access-list 100 permit udp any any eq 5060
          access-list 100 permit tcp any any eq 5060
          access-list 100 permit tcp any any eq 5061
      
          !-- Permit (Police or Drop)/Deny (Allow) all other Layer3 and Layer4
          !-- traffic in accordance with existing security policies and
          !-- configurations for traffic that is authorized to be sent
          !-- to infrastructure devices.
          !-- Create a Class-Map for traffic to be policed by
          !-- the CoPP feature.
      
          class-map match-all drop-sip-class
            match access-group 100
      
          !-- Create a Policy-Map that will be applied to the
          !-- Control-Plane of the device.
      
          policy-map control-plane-policy
           class drop-sip-class
            drop
      
          !-- Apply the Policy-Map to the Control-Plane of the
          !-- device.
      
          control-plane
           service-policy input control-plane-policy
      
      Note: Because SIP can use UDP as a transport protocol, it is possible
      to easily spoof the IP address of the sender, which may defeat access
      control lists that permit communication to these ports from trusted
      IP addresses.
      
      In the above CoPP example, the access control entries (ACEs) that
      match the potential exploit packets with the "permit" action result
      in these packets being discarded by the policy-map "drop" function,
      while packets that match the "deny" action (not shown) are not
      affected by the policy-map drop function. Additional information on
      the configuration and use of the CoPP feature can be found at 
      http://www.cisco.com/web/about/security/intelligence/coppwp_gs.html
      and http://www.cisco.com/en/US/docs/ios/12_3t/12_3t4/feature/guide/gtrtlimt.html
      
      Obtaining Fixed Software
      ========================
      
      Cisco has released free software updates that address these
      vulnerabilities. Prior to deploying software, customers should
      consult their maintenance provider or check the software for feature
      set compatibility and known issues specific to their environment.
      
      Customers may only install and expect support for the feature sets
      they have purchased. By installing, downloading, accessing or
      otherwise using such software upgrades, customers agree to be bound
      by the terms of Cisco's software license terms found at 
      http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html
      or as otherwise set forth at Cisco.com Downloads at 
      http://www.cisco.com/public/sw-center/sw-usingswc.shtml
      
      Do not contact psirt at cisco dot com or security-alert at cisco dot com for
      software upgrades.
      
      Customers with Service Contracts
      +-------------------------------
      
      Customers with contracts should obtain upgraded software through
      their regular update channels. For most customers, this means that
      upgrades should be obtained through the Software Center on Cisco's
      worldwide website at http://www.cisco.com
      
      Customers using Third Party Support Organizations
      +------------------------------------------------
      
      Customers whose Cisco products are provided or maintained through
      prior or existing agreements with third-party support organizations,
      such as Cisco Partners, authorized resellers, or service providers
      should contact that support organization for guidance and assistance
      with the appropriate course of action in regards to this advisory.
      
      The effectiveness of any workaround or fix is dependent on specific
      customer situations, such as product mix, network topology, traffic
      behavior, and organizational mission. Due to the variety of affected
      products and releases, customers should consult with their service
      provider or support organization to ensure any applied workaround or
      fix is the most appropriate for use in the intended network before it
      is deployed.
      
      Customers without Service Contracts
      +----------------------------------
      
      Customers who purchase direct from Cisco but do not hold a Cisco
      service contract, and customers who purchase through third-party
      vendors but are unsuccessful in obtaining fixed software through
      their point of sale should acquire upgrades by contacting the Cisco
      Technical Assistance Center (TAC). TAC contacts are as follows.
      
        * +1 800 553 2447 (toll free from within North America)
        * +1 408 526 7209 (toll call from anywhere in the world)
        * e-mail: tac at cisco dot com
      
      Customers should have their product serial number available and be
      prepared to give the URL of this notice as evidence of entitlement to
      a free upgrade. Free upgrades for non-contract customers must be
      requested through the TAC.
      
      Refer to http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html
      for additional TAC contact information, including localized telephone 
      numbers, and instructions and e-mail addresses for use in various 
      languages.
      
      Exploitation and Public Announcements
      =====================================
      
      The Cisco PSIRT is not aware of any public announcements or malicious
      use of the vulnerability described in this advisory.
      
      These vulnerabilities were discovered by Cisco during internal
      testing.
      
      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-20100922-sip.shtml
      
      In addition to worldwide web posting, a text version of this notice
      is clear-signed with the Cisco PSIRT PGP key and is posted to the
      following e-mail and Usenet news recipients.
      
        * cust-security-announce at cisco dot com
        * first-bulletins at lists dot first dot org
        * bugtraq at securityfocus dot com
        * vulnwatch at vulnwatch dot org
        * cisco at spot dot colorado dot edu
        * cisco-nsp at puck dot nether dot net
        * full-disclosure at lists.grok dot org dot uk
        * comp.dcom.sys.cisco at newsgate dot cisco dot com
      
      Future updates of this advisory, if any, will be placed on Cisco's
      worldwide website, but may or may not be actively announced on
      mailing lists or newsgroups. Users concerned about this problem are
      encouraged to check the above URL for any updates.
      
      Revision History
      ================
      
      +-----------------------------------------+
      | Revision |                   | Initial  |
      | 1.0      | 2010-September-22 | 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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