Vulnerability · Published May 25, 2021 · Assigned by mitre
CVE-2020-20450
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 1.1% (higher than 65% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.1%top 34.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
FFmpeg 4.2 is affected by null pointer dereference passed as argument to libavformat/aviobuf.c, which could cause a Denial of Service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | ffmpeg | 4.4-r0 | ALPINE-CVE-2020-20450 |
| Alpine:v3.21 | ffmpeg | 4.4-r0 | ALPINE-CVE-2020-20450 |
| Alpine:v3.22 | ffmpeg | 4.4-r0 | ALPINE-CVE-2020-20450 |
| Alpine:v3.23 | ffmpeg | 4.4-r0 | ALPINE-CVE-2020-20450 |
| Alpine:v3.24 | ffmpeg | 4.4-r0 | ALPINE-CVE-2020-20450 |
| Alpine:v3.20 | ffmpeg4 | 4.4-r0 | ALPINE-CVE-2020-20450 |
| Alpine:v3.21 | ffmpeg4 | 4.4-r0 | ALPINE-CVE-2020-20450 |
| Alpine:v3.22 | ffmpeg4 | 4.4-r0 | ALPINE-CVE-2020-20450 |
| Debian:12 | ffmpeg | 7:4.4-5 | DEBIAN-CVE-2020-20450 |
| Debian:13 | ffmpeg | 7:4.4-5 | DEBIAN-CVE-2020-20450 |
| Debian:14 | ffmpeg | 7:4.4-5 | DEBIAN-CVE-2020-20450 |
| 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/7993 x_refsource_MISC
- DSA-4998 vendor-advisory, x_refsource_DEBIAN