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             AUSCERT External Security Bulletin Redistribution

                               ESB-2012.0876
Cisco Unified Presence and Jabber Extensible Communications Platform Stream
                  Header Denial of Service Vulnerability
                             13 September 2012

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Cisco Unified Presence
                   Jabber Extensible Communications Platform
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade

Original Bulletin: 
   http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120912-cupxcp

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Cisco Unified Presence and Jabber Extensible Communications Platform
Stream Header Denial of Service Vulnerability

Advisory ID: cisco-sa-20120912-cupxcp

Revision 1.0

For Public Release 2012 September 12 16:00  UTC (GMT)
+---------------------------------------------------------------------

Summary
=======

A denial of service (DoS) vulnerability exists in Cisco Unified
Presence and Jabber Extensible Communications Platform (Jabber XCP).
An unauthenticated, remote attacker could exploit this vulnerability
by sending a specially crafted Extensible Messaging and Presence
Protocol (XMPP) stream header to an affected server. Successful
exploitation of this vulnerability could cause the Connection Manager
process to crash.  Repeated exploitation could result in a sustained
DoS condition.

There are no workarounds available to mitigate exploitation of this
vulnerability.

Cisco has released free software updates that address this
vulnerability.  

This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120912-cupxcp
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===========================================================================
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