Cisco IOS XR: Denial of Service -- Remote/Unauthenticated

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2013.1380
           Cisco IOS XR Software Memory Exhaustion Vulnerability
                              3 October 2013

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        AusCERT Security Bulletin Summary
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Product:           Cisco IOS XR
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2013-5503  

Original Bulletin: 
   http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20131002-iosxr

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Cisco Security Advisory: Cisco IOS XR Software Memory Exhaustion Vulnerability

Advisory ID: cisco-sa-20131002-iosxr

Revision 1.0

For Public Release 2013 October 2 16:00  UTC (GMT)

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Summary
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Cisco IOS XR Software version 4.3.1 contains a vulnerability that could result in complete packet memory exhaustion.  Successful exploitation could render critical services on the affected device unable to allocate packets resulting in a denial of service (DoS) condition.

Cisco has released free software updates that address this vulnerability.

Workarounds that mitigate this vulnerability are available.

This advisory is available at the following link:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20131002-iosxr

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