var-200909-0381
Vulnerability from variot

Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 5.x before 5.1(3g), 6.x before 6.1(4), 7.0.x before 7.0(2a)su1, and 7.1.x before 7.1(2) allows remote attackers to cause a denial of service (service restart) via malformed SIP messages, aka Bug ID CSCsz95423. Cisco Unified Communications Manager (CUCM) There is a service disruption (DoS) There is a vulnerability that becomes a condition. The problem is Bug ID : CSCsz95423 It is a problem.Malformed by a third party SIP Service disruption via message (DoS) There is a possibility of being put into a state. An attacker can exploit this issue to cause an interruption in voice services, denying service to legitimate users. This issue is tracked by Cisco Bug ID CSCsz95423.

Cisco has released free software updates that address this vulnerability. There are no workarounds for this vulnerability.

This advisory is posted at:

http://www.cisco.com/warp/public/707/cisco-sa-20090923-cm.shtml

Note: Cisco IOS\xae Software is also affected by the vulnerability described in this advisory. A companion advisory for Cisco IOS software is available at:

http://www.cisco.com/warp/public/707/cisco-sa-20090923-sip.shtml

Note: The September 23, 2009, Cisco IOS Security Advisory bundled publication includes eleven Security Advisories. Each advisory lists the releases that correct the vulnerability or vulnerabilities detailed in the advisory. The following table lists releases that correct all Cisco IOS Software vulnerabilities that have been published on September 23, 2009, or earlier.

http://www.cisco.com/warp/public/707/cisco-sa-20090923-bundle.shtml

Individual publication links are in "Cisco Event Response: Semiannual Cisco IOS Software Advisory Bundled Publication" at the following link:

http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_sep09.html

Affected Products

The vulnerability described in this document applies to the Cisco Unified Communications Manager. The software version can also be determined by running the "show version active" command via the command-line interface.

A SIP trunk must be configured for the Cisco Unified CallManager server to begin listening for SIP messages on TCP and UDP port 5060 and TCP/5061. However, in Cisco Unified Communications Manager versions 5.x and later, the use of SIP as a call signaling protocol is enabled by default and cannot be disabled. A companion security advisory for Cisco IOS Software is available at:

http://www.cisco.com/warp/public/707/cisco-sa-20090923-sip.shtml

Products Confirmed Not Vulnerable +--------------------------------

Cisco Unified CallManager versions 4.x are not affected by this vulnerability. With the exception of Cisco IOS software, no other Cisco products are currently known to be affected by this vulnerability.

Details

Cisco Unified Communications Manager is the call processing component of the Cisco IP Telephony solution that extends enterprise telephony features and functions to packet telephony network devices, such as IP phones, media processing devices, voice-over-IP gateways, and multimedia applications.

SIP is a popular signaling protocol that manages 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 is flexible enough 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.

Vulnerability Scoring Details

Cisco has provided scores for the vulnerability 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

CSCsz95423 - Crafted SIP packet may cause CM process to crash

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 vulnerability that is described in this advisory could result in a reload of the Cisco Unified Communications Manager process, which may result in the interruption of voice services.

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.

The following table contains the first fixed software release for this vulnerability. A device running a version of the given release in a specific row (less than the First Fixed Release) is known to be vulnerable.

+---------------------------------------+ | Release | First Fixed Version | |-----------+---------------------------| | 4.x | Not Vulnerable | |-----------+---------------------------| | 5.x | 5.1(3g) | |-----------+---------------------------| | 6.x | 6.1(4) | |-----------+---------------------------| | 7.0.x | 7.0(2a)su1 | |-----------+---------------------------| | 7.1.x | 7.1(2) | +---------------------------------------+

Workarounds

There are no workarounds for this vulnerability.

It is possible to mitigate this vulnerability by implementing filtering on screening devices and permitting TCP/UDP access to ports 5060 and TCP/5061 only from networks that require SIP access to Cisco Unified Communications Manager servers. Use the following instructions to change the ports from their default values:

Step 1 Log into the Cisco Unified CallManager Administration web interface.

Step 3 Change the fields SIP Phone Port and SIP Phone Secure Port fields to a non standard port and click Save.

SIP Phone Port, which is 5060 by default, refers to the TCP and UDP ports where the Cisco Unified Communications Manager listens for normal SIP messages, and SIP Phone Secure Port, by default 5061, refers to the TCP port where the Cisco Unified Communications Manager listens for SIP over TLS messages. For information on how to restart the service, refer to the "Restarting the Cisco CallManager Service" section of the document at:

http://www.cisco.com/en/US/docs/voice_ip_comm/cucmbe/admin/7_0_1/ccmcfg/b03dpi.html#wp1075124

Additional mitigations that can be deployed on Cisco devices in the network are available in the companion document "Cisco Applied Mitigation Bulletin: Identifying and Mitigating Exploitation of the Denial of Service Vulnerabilities in Cisco Unified Communications Manager and Cisco IOS Software", which is available at the following location:

http://www.cisco.com/warp/public/707/cisco-amb-20090923-voice.shtml

Obtaining Fixed Software

Cisco has released free software updates that address these vulnerabilities. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment.

Customers may only install and expect support for the feature sets they have purchased. By installing, downloading, accessing or otherwise using such software upgrades, customers agree to be bound by the terms of Cisco's software license terms found at:

http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html

or as otherwise set forth at Cisco.com Downloads at:

http://www.cisco.com/public/sw-center/sw-usingswc.shtml

Do not contact psirt@cisco.com or security-alert@cisco.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@cisco.com

Customers should have their product serial number available and be prepared to give the URL of this notice as evidence of entitlement to a free upgrade. Free upgrades for non-contract customers must be requested through the TAC.

Refer to:

http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html

for additional TAC contact information, including localized telephone numbers, and instructions and e-mail addresses for use in various languages.

Exploitation and Public Announcements

The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory.

This vulnerability was discovered 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-20090923-cm.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@cisco.com
  • first-bulletins@lists.first.org
  • bugtraq@securityfocus.com
  • vulnwatch@vulnwatch.org
  • cisco@spot.colorado.edu
  • cisco-nsp@puck.nether.net
  • full-disclosure@lists.grok.org.uk
  • comp.dcom.sys.cisco@newsgate.cisco.com

Future updates of this advisory, if any, will be placed on Cisco's worldwide website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the above URL for any updates.

Revision History

+----------------------------------------+ | Revision | | Initial | | 1.0 | 2009-September-23 | public | | | | release | +----------------------------------------+

Cisco Security Procedures

Complete information on reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco, is available on Cisco's worldwide website at:

http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html

This includes instructions for press inquiries regarding Cisco security notices. All Cisco security advisories are available at:

http://www.cisco.com/go/psirt -----BEGIN PGP SIGNATURE-----

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. ----------------------------------------------------------------------

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If not, then implement it through the most reliable vulnerability intelligence source on the market.

Implement it through Secunia.

The vulnerability is caused due to an error in the SIP implementation.

PROVIDED AND/OR DISCOVERED BY: Reported by the vendor.

ORIGINAL ADVISORY: http://www.cisco.com/warp/public/707/cisco-sa-20090923-cm.shtml

About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.

Subscribe: http://secunia.com/advisories/secunia_security_advisories/

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Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor.

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    "data": "Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 5.x before 5.1(3g), 6.x before 6.1(4), 7.0.x before 7.0(2a)su1, and 7.1.x before 7.1(2) allows remote attackers to cause a denial of service (service restart) via malformed SIP messages, aka Bug ID CSCsz95423. Cisco Unified Communications Manager (CUCM) There is a service disruption (DoS) There is a vulnerability that becomes a condition. The problem is Bug ID : CSCsz95423 It is a problem.Malformed by a third party SIP Service disruption via message (DoS) There is a possibility of being put into a state. \nAn attacker can exploit this issue to cause   an interruption in voice services, denying service to legitimate users. \nThis issue is tracked by Cisco Bug ID CSCsz95423. \n\nCisco has released free software updates that address this\nvulnerability. There are no workarounds for this vulnerability. \n\nThis advisory is posted at:\n\nhttp://www.cisco.com/warp/public/707/cisco-sa-20090923-cm.shtml\n\nNote: Cisco IOS\\xae Software is also affected by the vulnerability\ndescribed in this advisory. A companion advisory for Cisco IOS\nsoftware is available at:\n\nhttp://www.cisco.com/warp/public/707/cisco-sa-20090923-sip.shtml\n\nNote: The September 23, 2009, Cisco IOS Security Advisory bundled\npublication includes eleven Security Advisories. Each advisory lists the releases that correct the\nvulnerability or vulnerabilities detailed in the advisory. The\nfollowing table lists releases that correct all Cisco IOS Software\nvulnerabilities that have been published on September 23, 2009, or\nearlier. \n\nhttp://www.cisco.com/warp/public/707/cisco-sa-20090923-bundle.shtml\n\nIndividual publication links are in \"Cisco Event Response: Semiannual\nCisco IOS Software Advisory Bundled Publication\" at the following\nlink:\n\nhttp://www.cisco.com/web/about/security/intelligence/Cisco_ERP_sep09.html\n\nAffected Products\n=================\n\nThe vulnerability described in this document applies to the Cisco\nUnified Communications Manager. The software\nversion can also be determined by running the \"show version active\"\ncommand via the command-line interface. \n\nA SIP trunk must be configured for the Cisco Unified CallManager\nserver to begin listening for SIP messages on TCP and UDP port 5060\nand TCP/5061. However, in Cisco Unified Communications Manager\nversions 5.x and later, the use of SIP as a call signaling protocol\nis enabled by default and cannot be disabled. A companion security\nadvisory for Cisco IOS Software is available at:\n\nhttp://www.cisco.com/warp/public/707/cisco-sa-20090923-sip.shtml\n\nProducts Confirmed Not Vulnerable\n+--------------------------------\n\nCisco Unified CallManager versions 4.x are not affected by this\nvulnerability. With the exception of Cisco IOS software, no other\nCisco products are currently known to be affected by this\nvulnerability. \n\nDetails\n=======\n\nCisco Unified Communications Manager is the call processing component\nof the Cisco IP Telephony solution that extends enterprise telephony\nfeatures and functions to packet telephony network devices, such as\nIP phones, media processing devices, voice-over-IP gateways, and\nmultimedia applications. \n\nSIP is a popular signaling protocol that manages voice and video\ncalls across IP networks such as the Internet. SIP is responsible for\nhandling all aspects of call setup and termination. Voice and video\nare the most popular types of sessions that SIP handles, but the\nprotocol is flexible enough to accommodate other applications that\nrequire call setup and termination. SIP call signaling can use UDP\n(port 5060), TCP (port 5060), or Transport Layer Security (TLS; TCP\nport 5061) as the underlying transport protocol. \n\nVulnerability Scoring Details\n=============================\n\nCisco has provided scores for the vulnerability in this advisory\nbased on the Common Vulnerability Scoring System (CVSS). The CVSS\nscoring in this Security Advisory is done in accordance with CVSS\nversion 2.0. \n\nCVSS is a standards-based scoring method that conveys vulnerability\nseverity and helps determine urgency and priority of response. \n\nCisco has provided a base and temporal score. Customers can then\ncompute environmental scores to assist in determining the impact of\nthe vulnerability in individual networks. \n\nCisco has provided an FAQ to answer additional questions regarding\nCVSS at:\n\nhttp://www.cisco.com/web/about/security/intelligence/cvss-qandas.html\n\nCisco has also provided a CVSS calculator to help compute the\nenvironmental impact for individual networks at:\n\nhttp://intellishield.cisco.com/security/alertmanager/cvss\n\nCSCsz95423 - Crafted SIP packet may cause CM process to crash\n\nCVSS Base Score - 7.8\n\nAccess Vector           - Network\nAccess Complexity       - Low\nAuthentication          - None\nConfidentiality Impact  - None\nIntegrity Impact        - None\nAvailability Impact     - Complete\n\nCVSS Temporal Score - 6.4\n\nExploitability          - Functional\nRemediation Level       - Official-Fix\nReport Confidence       - Confirmed\n\nImpact\n======\n\nSuccessful exploitation of the vulnerability that is described in\nthis advisory could result in a reload of the Cisco Unified\nCommunications Manager process, which may result in the interruption\nof voice services. \n\nSoftware Versions and Fixes\n===========================\n\nWhen considering software upgrades, also consult:\n\nhttp://www.cisco.com/go/psirt\n\nand any subsequent advisories to determine exposure and a complete\nupgrade solution. \n\nIn all cases, customers should exercise caution to be certain the\ndevices to be upgraded contain sufficient memory and that current\nhardware and software configurations will continue to be supported\nproperly by the new release. If the information is not clear, contact\nthe Cisco Technical Assistance Center (TAC) or your contracted\nmaintenance provider for assistance. \n\nThe following table contains the first fixed software release for\nthis vulnerability. A device running a version of the given release\nin a specific row (less than the First Fixed Release) is known to be\nvulnerable. \n\n+---------------------------------------+\n| Release   | First Fixed Version       |\n|-----------+---------------------------|\n| 4.x       | Not Vulnerable            |\n|-----------+---------------------------|\n| 5.x       | 5.1(3g)                   |\n|-----------+---------------------------|\n| 6.x       | 6.1(4)                    |\n|-----------+---------------------------|\n| 7.0.x     | 7.0(2a)su1                |\n|-----------+---------------------------|\n| 7.1.x     | 7.1(2)                    |\n+---------------------------------------+\n\nWorkarounds\n===========\n\nThere are no workarounds for this vulnerability. \n\nIt is possible to mitigate this vulnerability by implementing\nfiltering on screening devices and permitting TCP/UDP access to ports\n5060 and TCP/5061 only from networks that require SIP access to Cisco\nUnified Communications Manager servers. Use the following instructions to change the ports from their\ndefault values:\n\nStep 1 Log into the Cisco Unified CallManager Administration web\ninterface. \n\nStep 3 Change the fields SIP Phone Port and SIP Phone Secure Port\nfields to a non standard port and click Save. \n\nSIP Phone Port, which is 5060 by default, refers to the TCP and UDP\nports where the Cisco Unified Communications Manager listens for\nnormal SIP messages, and SIP Phone Secure Port, by default 5061,\nrefers to the TCP port where the Cisco Unified Communications Manager\nlistens for SIP over TLS messages. For information on how to restart the\nservice, refer to the \"Restarting the Cisco CallManager Service\"\nsection of the document at:\n\nhttp://www.cisco.com/en/US/docs/voice_ip_comm/cucmbe/admin/7_0_1/ccmcfg/b03dpi.html#wp1075124\n\nAdditional mitigations that can be deployed on Cisco devices in the\nnetwork are available in the companion document \"Cisco Applied\nMitigation Bulletin: Identifying and Mitigating Exploitation of the\nDenial of Service Vulnerabilities in Cisco Unified Communications\nManager and Cisco IOS Software\", which is available at the following\nlocation:\n\nhttp://www.cisco.com/warp/public/707/cisco-amb-20090923-voice.shtml\n\nObtaining Fixed Software\n========================\n\nCisco has released free software updates that address these\nvulnerabilities. Prior to deploying software, customers should\nconsult their maintenance provider or check the software for feature\nset compatibility and known issues specific to their environment. \n\nCustomers may only install and expect support for the feature sets\nthey have purchased. By installing, downloading, accessing or\notherwise using such software upgrades, customers agree to be bound\nby the terms of Cisco\u0027s software license terms found at:\n\nhttp://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html\n\nor as otherwise set forth at Cisco.com Downloads at:\n\nhttp://www.cisco.com/public/sw-center/sw-usingswc.shtml\n\nDo not contact psirt@cisco.com or security-alert@cisco.com for\nsoftware upgrades. \n\nCustomers with Service Contracts\n+-------------------------------\n\nCustomers with contracts should obtain upgraded software through\ntheir regular update channels. For most customers, this means that\nupgrades should be obtained through the Software Center on Cisco\u0027s\nworldwide website at http://www.cisco.com. \n\nCustomers using Third Party Support Organizations\n+------------------------------------------------\n\nCustomers whose Cisco products are provided or maintained through\nprior or existing agreements with third-party support organizations,\nsuch as Cisco Partners, authorized resellers, or service providers\nshould contact that support organization for guidance and assistance\nwith the appropriate course of action in regards to this advisory. \n\nThe effectiveness of any workaround or fix is dependent on specific\ncustomer situations, such as product mix, network topology, traffic\nbehavior, and organizational mission. Due to the variety of affected\nproducts and releases, customers should consult with their service\nprovider or support organization to ensure any applied workaround or\nfix is the most appropriate for use in the intended network before it\nis deployed. \n\nCustomers without Service Contracts\n+----------------------------------\n\nCustomers who purchase direct from Cisco but do not hold a Cisco\nservice contract, and customers who purchase through third-party\nvendors but are unsuccessful in obtaining fixed software through\ntheir point of sale should acquire upgrades by contacting the Cisco\nTechnical Assistance Center (TAC). TAC contacts are as follows. \n\n  * +1 800 553 2447 (toll free from within North America)\n  * +1 408 526 7209 (toll call from anywhere in the world)\n  * e-mail: tac@cisco.com\n\nCustomers should have their product serial number available and be\nprepared to give the URL of this notice as evidence of entitlement to\na free upgrade. Free upgrades for non-contract customers must be\nrequested through the TAC. \n\nRefer to:\n\nhttp://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html\n\nfor additional TAC contact information, including localized telephone\nnumbers, and instructions and e-mail addresses for use in various\nlanguages. \n\nExploitation and Public Announcements\n=====================================\n\nThe Cisco PSIRT is not aware of any public announcements or malicious\nuse of the vulnerability described in this advisory. \n\nThis vulnerability was discovered during internal testing. \n\nStatus of this Notice: FINAL\n============================\n\nTHIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY\nKIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF\nMERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE\nINFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS\nAT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS\nDOCUMENT AT ANY TIME. \n\nA stand-alone copy or Paraphrase of the text of this document that\nomits the distribution URL in the following section is an\nuncontrolled copy, and may lack important information or contain\nfactual errors. \n\nDistribution\n============\n\nThis advisory is posted on Cisco\u0027s worldwide website at:\n\nhttp://www.cisco.com/warp/public/707/cisco-sa-20090923-cm.shtml\n\nIn addition to worldwide web posting, a text version of this notice\nis clear-signed with the Cisco PSIRT PGP key and is posted to the\nfollowing e-mail and Usenet news recipients. \n\n  * cust-security-announce@cisco.com\n  * first-bulletins@lists.first.org\n  * bugtraq@securityfocus.com\n  * vulnwatch@vulnwatch.org\n  * cisco@spot.colorado.edu\n  * cisco-nsp@puck.nether.net\n  * full-disclosure@lists.grok.org.uk\n  * comp.dcom.sys.cisco@newsgate.cisco.com\n\nFuture updates of this advisory, if any, will be placed on Cisco\u0027s\nworldwide website, but may or may not be actively announced on\nmailing lists or newsgroups. Users concerned about this problem are\nencouraged to check the above URL for any updates. \n\nRevision History\n================\n\n+----------------------------------------+\n| Revision |                   | Initial |\n| 1.0      | 2009-September-23 | public  |\n|          |                   | release |\n+----------------------------------------+\n\nCisco Security Procedures\n=========================\n\nComplete information on reporting security vulnerabilities in Cisco\nproducts, obtaining assistance with security incidents, and\nregistering to receive security information from Cisco, is available\non Cisco\u0027s worldwide website at:\n\nhttp://www.cisco.com/en/US/products/products_security_vulnerability_policy.html\n\nThis includes instructions for press inquiries regarding Cisco security\nnotices. All Cisco security advisories are available at:\n\nhttp://www.cisco.com/go/psirt\n-----BEGIN PGP SIGNATURE-----\n\niD8DBQFKukGE86n/Gc8U/uARAp0sAJ9WOsbXB1KzPl36kQRFCcVHLqC9twCgiOQx\nlBVMS0I0ypD4TW2DBvWPkLM=\n=1qvW\n-----END PGP SIGNATURE-----\n\n. ----------------------------------------------------------------------\n\nDo you have VARM strategy implemented?\n\n(Vulnerability Assessment Remediation Management)  \n\nIf not, then implement it through the most reliable vulnerability\nintelligence source on the market. \n\nImplement it through Secunia. \n\nThe vulnerability is caused due to an error in the SIP\nimplementation. \n\nPROVIDED AND/OR DISCOVERED BY:\nReported by the vendor. \n\nORIGINAL ADVISORY:\nhttp://www.cisco.com/warp/public/707/cisco-sa-20090923-cm.shtml\n\n----------------------------------------------------------------------\n\nAbout:\nThis Advisory was delivered by Secunia as a free service to help\neverybody keeping their systems up to date against the latest\nvulnerabilities. \n\nSubscribe:\nhttp://secunia.com/advisories/secunia_security_advisories/\n\nDefinitions: (Criticality, Where etc.)\nhttp://secunia.com/advisories/about_secunia_advisories/\n\n\nPlease Note:\nSecunia recommends that you verify all advisories you receive by\nclicking the link. \nSecunia NEVER sends attached files with advisories. \nSecunia does not advise people to install third party patches, only\nuse those supplied by the vendor. \n\n----------------------------------------------------------------------\n\nUnsubscribe: Secunia Security Advisories\nhttp://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org\n\n----------------------------------------------------------------------\n\n\n",
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