CVE-2013-5479 Information

Description

The DNS-over-TCP implementation in Cisco IOS 12.2 and 15.0 through 15.3 when NAT is used allows remote attackers to cause a denial of service (device reload) via a crafted IPv4 DNS TCP stream aka Bug ID CSCtn53730.

Reference

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130925-nat