Use After Free Affecting ffmpeg package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
1.73% (76th percentile)

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  • Snyk IDSNYK-DEBIAN9-FFMPEG-1579473
  • 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?

There is no fixed version for Debian:9 ffmpeg.

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:9 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 Base Scores

version 3.1