AST-2021-001: Remote crash in res_pjsip_diversion
AST-2021-002: Remote crash possible when negotiating T.38
AST-2021-003: Remote attacker could prematurely tear down SRTP calls
AST-2021-004: An unsuspecting user could crash Asterisk with multiple hold/unhold requests
AST-2021-005: Remote Crash Vulnerability in PJSIP channel driver