An exploitable denial of service vulnerability exists in the GstRTSPAuth functionality of GStreamer/gst-rtsp-server 1.14.5. A specially crafted RTSP setup request can cause a null pointer deference resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability.
https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1018
https://security.gentoo.org/glsa/202009-05
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00029.html