CVE-2021-38171
Published: 21 August 2021
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.
Priority
Status
Package | Release | Status |
---|---|---|
ffmpeg Launchpad, Ubuntu, Debian |
bionic |
Released
(7:3.4.11-0ubuntu0.1)
|
focal |
Released
(7:4.2.7-0ubuntu0.1)
|
|
hirsute |
Ignored
(reached end-of-life)
|
|
impish |
Released
(7:4.4.2-0ubuntu0.21.10.1)
|
|
jammy |
Not vulnerable
(7:4.4.1-3ubuntu2)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.4.1)
|
|
xenial |
Released
(7:2.8.17-0ubuntu0.1+esm4)
|
|
Patches: upstream: https://github.com/FFmpeg/FFmpeg/commit/9ffa49496d1aae4cbbb387aac28a9e061a6ab0a6 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 9.8 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38171
- https://github.com/FFmpeg/FFmpeg/commit/9ffa49496d1aae4cbbb387aac28a9e061a6ab0a6
- https://patchwork.ffmpeg.org/project/ffmpeg/patch/AS8P193MB12542A86E22F8207EC971930B6F19@AS8P193MB1254.EURP193.PROD.OUTLOOK.COM/
- https://ubuntu.com/security/notices/USN-5472-1
- NVD
- Launchpad
- Debian