Use After Free Affecting ffmpeg package, versions <7:4.4-5


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.52% (77th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FFMPEG-1579472
  • published1 Sept 2021
  • disclosed10 Aug 2021

Introduced: 10 Aug 2021

CVE-2020-21688  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:unstable ffmpeg to version 7:4.4-5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ffmpeg package and not the ffmpeg package as distributed by Debian. See How to fix? for Debian:unstable 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.

CVSS Scores

version 3.1