DEBIAN-CVE-2020-21697

DEBIAN-CVE-2020-21697 PUBLISHED CVSS 6.5 MEDIUM

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.

Risk Scores

CVSS 3.1

6.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
Debian:14	ffmpeg	0, 0, 0
Debian:13	ffmpeg	0, 0, 0
Debian:11	ffmpeg	7:4.3.2-2, *, 0
Debian:12	ffmpeg	0, 0, 0

Timeline

Aug 10, 2021 CVE Published
Apr 28, 2026 CVE Updated

References

https://security-tracker.debian.org/tracker/CVE-2020-21697 advisory

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