Unspecified vulnerability in the SIP inspection feature on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 before 8.0(5.17), 8.1 before 8.1(2.45), and 8.2 before 8.2(2.13) allows remote attackers to cause a denial of service (device reload) via crafted SIP packets, aka Bug ID CSCtd32106.
http://www.securityfocus.com/bid/42189
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b3f12f.shtml