1. 2012-04-23 [1] [VOIPSEC] AST-2012-006: Remote Crash Vulnerability in SIP voipsec Asterisk Securit 2. 2012-04-23 [1] [VOIPSEC] AST-2012-005: Heap Buffer Overflow in Skinny Cha voipsec Asterisk Securit 3. 2012-04-23 [1] [VOIPSEC] AST-2012-004: Asterisk Manager User Unauthorized voipsec Asterisk Securit