{"id":"CVE-2021-3497","details":"GStreamer before 1.18.4 might access already-freed memory in error code paths when demuxing certain malformed Matroska files.","modified":"2026-04-10T04:34:58.444304Z","published":"2021-04-19T21:15:13.113Z","related":["ALSA-2022:7618","SUSE-SU-2021:2915-1","SUSE-SU-2021:2916-1","SUSE-SU-2023:3688-1","openSUSE-SU-2021:1230-1","openSUSE-SU-2021:2915-1","openSUSE-SU-2024:11778-1"],"references":[{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202208-31"},{"type":"ADVISORY","url":"https://www.debian.org/security/2021/dsa-4900"},{"type":"ADVISORY","url":"https://gstreamer.freedesktop.org/security/sa-2021-0002.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/04/msg00027.html"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1945339"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/gstreamer/gstreamer","events":[{"introduced":"2383bf6dedb7912df06a8c4f03aa9f241a7aff6f"},{"fixed":"b5b2e3b9208f1f93bc5b0244d29dfed157d78293"}],"database_specific":{"versions":[{"introduced":"0.10.0"},{"fixed":"1.18.4"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3497.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}