The gst_asf_demux_process_ext_content_desc function in gst/asfdemux/gstasfdemux.c in gst-plugins-ugly in GStreamer allows remote attackers to cause a denial of service (out-of-bounds heap read) via vectors involving extended content descriptors.
https://security.gentoo.org/glsa/201705-10
https://lists.debian.org/debian-lts-announce/2020/05/msg00030.html
https://github.com/GStreamer/gst-plugins-ugly/commit/d21017b52a585f145e8d62781bcc1c5fefc7ee37
https://bugzilla.gnome.org/show_bug.cgi?id=777955#c3
http://www.securityfocus.com/bid/96001
http://www.openwall.com/lists/oss-security/2017/02/02/9