CVE-2009-0636
Unspecified vulnerability in Cisco IOS 12.0 through 12.4, when SIP voice services are enabled, allows remote attackers to cause a denial of service (device crash) via a valid SIP message.
Date published : 2009-03-27
http://www.securityfocus.com/bid/34243
http://www.cisco.com/en/US/products/products_security_advisory09186a0080a904c0.shtml