Cisco IOS Software Data-Link Switching Vulnerability

Cisco IOS Software contains a memory leak vulnerability in the Data-Link
Switching (DLSw) feature that could result in a device reload when processing crafted IP Protocol 91 packets.

Cisco has released software updates that address this vulnerability.

This advisory is posted at https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110928-dlsw[“[[Publication_URL]]”].

Note: The September 28, 2011, Cisco IOS Software
Security Advisory bundled publication includes ten Cisco Security Advisories.
Nine of the advisories address vulnerabilities in Cisco IOS Software, and one
advisory addresses a vulnerability in Cisco Unified Communications Manager.
Each advisory lists the Cisco IOS Software releases that correct the
vulnerability or vulnerabilities detailed in the advisory as well as the Cisco
IOS Software releases that correct all vulnerabilities in the September 2011
Bundled Publication.

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

http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_sep11.html[“http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_sep11.html”]

[“http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_sep11.html”]

[“https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20110928-dlsw”]