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


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.27% (69th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Use After Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-DEBIAN13-FFMPEG-5679345
  • 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:13 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:13 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