CVE-2013-1166 Information

Description

Cisco IOS XE 3.2 through 3.4 before 3.4.5S and 3.5 through 3.7 before 3.7.1S on 1000 series Aggregation Services Routers (ASR) when VRF-aware NAT and SIP ALG are enabled allows remote attackers to cause a denial of service (card reload) by sending many SIP packets aka Bug ID CSCuc65609.

Reference

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130410-asr1000