CVE ID:	CVE-2021-3497
Description:	GStreamer before 1.18.4 might access already-freed memory in error code paths when demuxing certain malformed Matroska files.
Test IDs:	1.3.6.1.4.1.25623.1.1.2.2021.1796   1.3.6.1.4.1.25623.1.1.2.2021.2584   1.3.6.1.4.1.25623.1.1.2.2021.2377   1.3.6.1.4.1.25623.1.1.2.2021.2379   1.3.6.1.4.1.25623.1.0.892640   1.3.6.1.4.1.25623.1.1.2.2021.2331   1.3.6.1.4.1.25623.1.1.2.2021.1981   1.3.6.1.4.1.25623.1.1.4.2021.2916.1   1.3.6.1.4.1.25623.1.1.2.2021.2219
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-3497 Debian Security Information: DSA-4900 (Google Search) https://www.debian.org/security/2021/dsa-4900 https://security.gentoo.org/glsa/202208-31 https://bugzilla.redhat.com/show_bug.cgi?id=1945339 https://bugzilla.redhat.com/show_bug.cgi?id=1945339 https://gstreamer.freedesktop.org/security/sa-2021-0002.html https://gstreamer.freedesktop.org/security/sa-2021-0002.html https://lists.debian.org/debian-lts-announce/2021/04/msg00027.html