CVE-2011-4019

Name of the Vulnerable Software and Affected Versions Cisco IOS versions 12.4 and 15.0 through 15.2 Cisco Unified Communications Manager (CUCM) version 7.x

Description A memory leak issue allows remote attackers to cause a denial of service by consuming memory via a crafted response to a SIP SUBSCRIBE message.

Recommendations For Cisco IOS versions 12.4 and 15.0 through 15.2, update to a version that includes the fix for Bug IDs CSCto93837 and CSCtj61883. For Cisco Unified Communications Manager (CUCM) version 7.x, update to a version that includes the fix for Bug IDs CSCto93837 and CSCtj61883.