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CVE-2020-20446

Published: 25 May 2021

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.

Priority

Low

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
ffmpeg
Launchpad, Ubuntu, Debian
impish
Released (7:4.4.2-0ubuntu0.21.10.1)
bionic
Released (7:3.4.11-0ubuntu0.1)
focal
Released (7:4.2.7-0ubuntu0.1)
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
jammy Not vulnerable
(7:4.4.1-3ubuntu2)
trusty Does not exist

upstream
Released (4.4.1)
xenial
Released (7:2.8.17-0ubuntu0.1+esm1)
Available with Ubuntu Pro
Patches:
upstream: https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/223b5e8ac9f6461bb13ed365419ec485c5b2b002

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H