Use After Free Affecting libavutil-devel package, versions <3.4.2-11.8.2
Threat Intelligence
EPSS
0.26% (66th
percentile)
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Test your applications- Snyk ID SNYK-SLES153-LIBAVUTILDEVEL-2666379
- published 14 Apr 2022
- disclosed 2 Sep 2021
Introduced: 2 Sep 2021
CVE-2020-21688 Open this link in a new tabHow to fix?
Upgrade SLES:15.3 libavutil-devel to version 3.4.2-11.8.2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libavutil-devel package and not the libavutil-devel package as distributed by SLES.
See How to fix? for SLES:15.3 relevant fixed versions and status.
A heap-use-after-free in the av_freep function in libavutil/mem.c of FFmpeg 4.2 allows attackers to execute arbitrary code.
References
- https://www.suse.com/security/cve/CVE-2020-21688.html
- https://lists.suse.com/pipermail/sle-security-updates/2021-September/009387.html
- https://www.suse.com/support/update/announcement/2021/suse-su-20212919-1/
- https://bugzilla.suse.com/1129714
- https://bugzilla.suse.com/1186849
- https://bugzilla.suse.com/1186859
- https://bugzilla.suse.com/1186861
- https://bugzilla.suse.com/1186863
- https://bugzilla.suse.com/1189142
- https://bugzilla.suse.com/1189348
- https://bugzilla.suse.com/1189350
- https://www.suse.com/security/cve/CVE-2019-9721/
- https://www.suse.com/security/cve/CVE-2020-21688/
- https://www.suse.com/security/cve/CVE-2020-21697/
- https://www.suse.com/security/cve/CVE-2020-22046/
- https://www.suse.com/security/cve/CVE-2020-22048/
- https://www.suse.com/security/cve/CVE-2020-22049/
- https://www.suse.com/security/cve/CVE-2020-22054/
- https://www.suse.com/security/cve/CVE-2021-38114/
- https://www.suse.com/support/security/rating/
- https://trac.ffmpeg.org/ticket/8186
- https://www.debian.org/security/2021/dsa-4998
CVSS Scores
version 3.1