CVE-2020-21697
6.5
MEDIUM
CVSS 3.1
EPSS 0.28%
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.
How to fix CVE-2020-21697
To remediate CVE-2020-21697, upgrade the affected package to a fixed version below.
- Debian/ffmpeg—upgrade to 7:4.3.3-0+deb11u1 or later
Is CVE-2020-21697 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 7:4.3.3-0+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |