CVE-2020-22031

Publication date 27 May 2021

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A Heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 at libavfilter/vf_w3fdif.c in filter16_complex_low, which might lead to memory corruption and other potential consequences.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ffmpeg	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Ignored end of life
	20.04 LTS focal	Fixed 7:4.2.7-0ubuntu0.1
	18.04 LTS bionic	Fixed 7:3.4.11-0ubuntu0.1
	16.04 LTS xenial	Fixed 7:2.8.17-0ubuntu0.1+esm2
	14.04 LTS trusty	Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
ffmpeg	Upstream: https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=0e68e8c93f9068596484ec8ba725586860e06fc8

Severity score breakdown

Parameter	Value
Base score	8.8 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H