CVE-2013-5543

Name of the Vulnerable Software and Affected Versions Cisco IOS XE versions 3.4 through 3.4.2S Cisco IOS XE versions 3.5 through 3.5.1S

Description The issue allows remote attackers to cause a denial of service via malformed ICMP error packets associated with a TCP or UDP session under inspection by the Zone-Based Firewall component. Successful exploitation could trigger a reload of the embedded services processors card or the route processor card, causing an interruption of services. Repeated exploitation could result in a sustained denial of service condition.

Recommendations For Cisco IOS XE versions 3.4 through 3.4.2S, update to version 3.4.2S or later. For Cisco IOS XE versions 3.5 through 3.5.1S, update to version 3.5.1S or later.