Unspecified vulnerability in Cisco IOS 12.2 through 12.4 allows remote attackers to cause a denial of service (device reload) via a crafted H.323 packet, aka Bug ID CSCsz38104.
https://exchange.xforce.ibmcloud.com/vulnerabilities/53446
http://www.vupen.com/english/advisories/2009/2759
http://www.securitytracker.com/id?1022930
http://www.securityfocus.com/bid/36494
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af811a.shtml
http://tools.cisco.com/security/center/viewAlert.x?alertId=18885