# Pjsip

- [Asterisk PJSIP: crash via invalid SDP fmtp attribute](/advisories/ES2018-02-asterisk-pjsip-sdp-invalid-fmtp-segfault.md) (2018-02-22)
- [Asterisk PJSIP: crash via invalid SDP media format description](/advisories/ES2018-03-asterisk-pjsip-sdp-invalid-media-format-description-segfault.md) (2018-02-22)
- [Asterisk PJSIP: crash via repeated INVITE messages over TCP/TLS](/advisories/ES2018-04-asterisk-pjsip-tcp-segfault.md) (2018-02-22)
- [Asterisk PJSIP: stack corruption via large Accept header in SUBSCRIBE](/advisories/ES2018-01-asterisk-pjsip-subscribe-stack-corruption.md) (2018-02-22)
- [Asterisk PJSIP: heap overflow in CSeq header parsing](/advisories/ES2017-01-asterisk-pjsip-cseq-overflow.md) (2017-05-23)
- [Asterisk PJSIP: out-of-bound memory access in multipart parser](/advisories/ES2017-02-asterisk-pjsip-multi-part-crash.md) (2017-05-23)