id summary reporter owner description type status priority milestone component version resolution keywords cc backport_to_milestone backported 2016 Buffer overrun in PJSIP transaction layer ming bennylp "A crash can happen if PJSIP receives a message with a specific CSeq header and a Via header with no branch parameter. The issue is that the PJSIP RFC 2543 transaction key generation algorithm does not allocate a large enough buffer. By overrunning the buffer, the memory allocation table becomes corrupted, leading to an eventual crash. Thanks to George Joseph and Asterisk team for the report. " defect closed normal release-2.7 pjsip trunk fixed 0