Unspecified vulnerability in Cisco IOS 15.0 through 15.1, in certain HTTP Layer 7 Application Control and Inspection configurations, allows remote attackers to cause a denial of service (device reload or hang) via a crafted HTTP packet, aka Bug ID CSCto68554.
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d57.shtml
http://tools.cisco.com/security/center/viewAlert.x?alertId=24124