liblivemedia in Live555 before 2019.02.03 mishandles the termination of an RTSP stream after RTP/RTCP-over-RTSP has been set up, which could lead to a Use-After-Free error that causes the RTSP server to crash (Segmentation fault) or possibly have unspecified other impact.
https://www.debian.org/security/2019/dsa-4408
https://security.gentoo.org/glsa/202005-06
https://seclists.org/bugtraq/2019/Mar/22
https://lists.debian.org/debian-lts-announce/2019/02/msg00037.html
http://www.live555.com/liveMedia/public/changelog.txt
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00024.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00044.html
http://lists.live555.com/pipermail/live-devel/2019-February/021143.html