CVE-2021-3497
HIGH severity · CVSS 7.8 · Use-after-free
7.8CVSS HIGH
Summary
GStreamer before 1.18.4 might access already-freed memory in error code paths when demuxing certain malformed Matroska files.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://bugzilla.redhat.com/show_bug.cgi?id=1945339 ↗
Additional information
- NVD record
- https://bugzilla.redhat.com/show_bug.cgi?id=1945339Patch
- https://gstreamer.freedesktop.org/security/sa-2021-0002.htmlAdvisory
- https://lists.debian.org/debian-lts-announce/2021/04/msg00027.htmlAdvisory
- https://security.gentoo.org/glsa/202208-31Advisory
- https://www.debian.org/security/2021/dsa-4900Advisory