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6.8
CVSSv2

CVE-2020-21688

Published: 10/08/2021 Updated: 30/11/2021
CVSS v2 Base Score: 6.8 | Impact Score: 6.4 | Exploitability Score: 8.6
CVSS v3 Base Score: 8.8 | Impact Score: 5.9 | Exploitability Score: 2.8
VMScore: 605
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
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Vulnerability Summary

A heap-use-after-free in the av_freep function in libavutil/mem.c of FFmpeg 4.2 allows malicious users to execute arbitrary code.

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ffmpeg ffmpeg 4.2

debian debian linux 11.0

Vendor Advisories

Ubuntu Security Notice: USN-5472-1: FFmpeg vulnerabilities
Several security issues were fixed in FFmpeg ...
Debian Security Advisories: DSA-4998-1 ffmpeg -- security update
Several vulnerabilities have been discovered in the FFmpeg multimedia framework, which could result in denial of service or potentially the execution of arbitrary code if malformed files/streams are processed For the stable distribution (bullseye), these problems have been fixed in version 7:433-0+deb11u1 We recommend that you upgrade your ffmp ...

References

CWE-416https://trac.ffmpeg.org/ticket/8186https://www.debian.org/security/2021/dsa-4998https://ubuntu.com/security/notices/USN-5472-1https://nvd.nist.gov
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-27322administrator privilegesCVE-2024-1579hardcodedCVE-2023-20198CVE-2024-33587CVE-2024-33449CVE-2024-4308HTML injection
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