CVE-2021-38171
9.8
CRITICAL
CVSS 3.1
EPSS 0.21%
Description
adts_decode_extradata in libavformat/adtsenc.c in FFmpeg 4.4 does not check the init_get_bits return value, which is a necessary step because the second argument to init_get_bits can be crafted.
How to fix CVE-2021-38171
To remediate CVE-2021-38171, upgrade the affected package to a fixed version below.
- Debian/ffmpeg—upgrade to 7:4.3.3-0+deb11u1 or later
Is CVE-2021-38171 being exploited?
Low — EPSS is 0.2%, 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 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |