Divide By Zero Affecting ffmpeg package, versions <7:2.8.17-0ubuntu0.1+esm1


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
1.73% (75th percentile)

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  • Snyk IDSNYK-UBUNTU1604-FFMPEG-1639325
  • published22 Mar 2026
  • disclosed25 May 2021

Introduced: 25 May 2021

CVE-2020-20446  (opens in a new tab)
CWE-369  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 ffmpeg to version 7:2.8.17-0ubuntu0.1+esm1 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 Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

FFmpeg 4.2 is affected by a Divide By Zero issue via libavcodec/aacpsy.c, which allows a remote malicious user to cause a Denial of Service.

CVSS Base Scores

version 3.1