Vulnerability CVE-2021-3497
Published: 2021-04-19

Description:
GStreamer before 1.18.4 might access already-freed memory in error code paths when demuxing certain malformed Matroska files.

Type:

CWE-416

 (Use After Free)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Redhat -> Enterprise linux 
Gstreamer project -> Gstreamer 
Debian -> Debian linux 

 References:
https://gstreamer.freedesktop.org/security/sa-2021-0002.html
https://bugzilla.redhat.com/show_bug.cgi?id=1945339
https://www.debian.org/security/2021/dsa-4900
https://lists.debian.org/debian-lts-announce/2021/04/msg00027.html
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