AST-2018-002: Crash when given an invalid SDP media format description
AST-2018-003: Crash with an invalid SDP fmtp attribute
AST-2018-004 (CVE-2018-7284): Crash when receiving SUBSCRIBE request
AST-2018-005 (CVE-2018-7286): Crash when large numbers of TCP connections are closed suddenly
AST-2018-007: Infinite loop when reading iostreams
AST-2018-008: PJSIP endpoint presence disclosure when using ACL
AST-2018-009 (CVE-2018-17281): Remote crash in HTTP websocket upgrade

(cherry picked from commit d82e7ed8)