CVE-2012-5977

Asterisk Open Source 1.8.x before 1.8.19.1, 10.x before 10.11.1, and 11.x before 11.1.2; Certified Asterisk 1.8.11 before 1.8.11-cert10; and Asterisk Digiumphones 10.x-digiumphones before 10.11.1-digiumphones, when anonymous calls are enabled, allow remote attackers to cause a denial of service...

asterisk -- multiple vulnerabilities

Asterisk project reports: Crashes due to large stack allocations when using TCP Denial of Service Through Exploitation of Device State Caching...