Intrusion Prevention

Cisco.514.UDP.Flood.DoS

Description

It indicates an attempt to exploit a Denial of Service vulnerability in Cisco IOS.
The vulnerability is due to an error when the application handles a malformed packet. A remote attack may be able to exploit this to cause a denial of service condition on the affected system.

Affected Products

Cisco IOS 11.2P
Cisco IOS 11.3T
Cisco IOS 12.0, 12.0T
Cisco IOS 12.1, 12.1T, 12.1E
Cisco IOS 12.2, 12.2T

Impact

Denial of Service: Remote attackers can crash vulnerable systems.

Recommended Actions

Upgrade to the latest version available from the website.
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20011128-ios-cbac-dynacl