CVE-2020-21697

Medium

Description

A heap-use-after-free in the mpeg_mux_write_packet function in libavformat/mpegenc.c of FFmpeg 4.2 allows to cause a denial of service (DOS) via a crafted avi file.

SeverityMedium

CVSS6.5

Exploit probability—

Product

Ffmpeg

PublishedAug 10, 2021

First seenAug 10, 2021

How to fix

Vendor advisories

debian.org/security/2021/dsa-4998

Affected products

Product	Affected versions	Fixed in
ffmpeg ffmpeg	4.2	—
debian debian_linux	11.0	—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.