Vulnerability · Published Aug 12, 2021 · Assigned by mitre
CVE-2021-38291
High 7.5
In plain English
A high-severity security flaw in the ffmpeg package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.7% (higher than 86% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.7%top 14.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
FFmpeg version (git commit de8e6e67e7523e48bb27ac224a0b446df05e1640) suffers from a an assertion failure at src/libavutil/mathematics.c.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | ffmpeg | 4.4.1-r0 | ALPINE-CVE-2021-38291 |
| Alpine:v3.21 | ffmpeg | 4.4.1-r0 | ALPINE-CVE-2021-38291 |
| Alpine:v3.22 | ffmpeg | 4.4.1-r0 | ALPINE-CVE-2021-38291 |
| Alpine:v3.23 | ffmpeg | 4.4.1-r0 | ALPINE-CVE-2021-38291 |
| Alpine:v3.24 | ffmpeg | 4.4.1-r0 | ALPINE-CVE-2021-38291 |
| Alpine:v3.20 | ffmpeg4 | 4.4.1-r0 | ALPINE-CVE-2021-38291 |
| Alpine:v3.21 | ffmpeg4 | 4.4.1-r0 | ALPINE-CVE-2021-38291 |
| Alpine:v3.22 | ffmpeg4 | 4.4.1-r0 | ALPINE-CVE-2021-38291 |
| Debian:12 | ffmpeg | 7:4.4.1-1 | DEBIAN-CVE-2021-38291 |
| Debian:13 | ffmpeg | 7:4.4.1-1 | DEBIAN-CVE-2021-38291 |
| Debian:14 | ffmpeg | 7:4.4.1-1 | DEBIAN-CVE-2021-38291 |
| Ubuntu:22.04:LTS | ffmpeg | 7:4.4.2-0ubuntu0.22.04.1 | USN-5472-1 |
Affected products (as reported)
References
- https://trac.ffmpeg.org/ticket/9312
- DSA-4990 vendor-advisory
- DSA-4998 vendor-advisory
- [debian-lts-announce] 20211114 [SECURITY] [DLA 2818-1] ffmpeg security update mailing-list
- GLSA-202312-14 vendor-advisory