Vulnerability · Published May 25, 2021 · Assigned by mitre
CVE-2020-20453
Medium 6.5
In plain English
A medium-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 1.8% (higher than 78% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.8%top 21.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
FFmpeg 4.2 is affected by a Divide By Zero issue via libavcodec/aaccoder, which allows a remote malicious user to cause a Denial of Service
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | ffmpeg | 4.4.1-r0 | ALPINE-CVE-2020-20453 |
| Alpine:v3.21 | ffmpeg | 4.4.1-r0 | ALPINE-CVE-2020-20453 |
| Alpine:v3.22 | ffmpeg | 4.4.1-r0 | ALPINE-CVE-2020-20453 |
| Alpine:v3.23 | ffmpeg | 4.4.1-r0 | ALPINE-CVE-2020-20453 |
| Alpine:v3.24 | ffmpeg | 4.4.1-r0 | ALPINE-CVE-2020-20453 |
| Alpine:v3.20 | ffmpeg4 | 4.4.1-r0 | ALPINE-CVE-2020-20453 |
| Alpine:v3.21 | ffmpeg4 | 4.4.1-r0 | ALPINE-CVE-2020-20453 |
| Alpine:v3.22 | ffmpeg4 | 4.4.1-r0 | ALPINE-CVE-2020-20453 |
| Debian:12 | ffmpeg | 7:4.4.1-1 | DEBIAN-CVE-2020-20453 |
| Debian:13 | ffmpeg | 7:4.4.1-1 | DEBIAN-CVE-2020-20453 |
| Debian:14 | ffmpeg | 7:4.4.1-1 | DEBIAN-CVE-2020-20453 |
| 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/8003 x_refsource_MISC
- DSA-4990 vendor-advisory, x_refsource_DEBIAN
- DSA-4998 vendor-advisory, x_refsource_DEBIAN
- [debian-lts-announce] 20211114 [SECURITY] [DLA 2818-1] ffmpeg security update mailing-list, x_refsource_MLIST