Vulnerability · Published Sep 20, 2021 · Assigned by mitre
CVE-2020-20896
High 8.8
In plain English
A high-severity security flaw in the ffmpeg package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 67% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.2%top 32.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An issue was discovered in function latm_write_packet in libavformat/latmenc.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts due to a Null pointer dereference.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | ffmpeg | 7:4.3-2 | DEBIAN-CVE-2020-20896 |
| Debian:13 | ffmpeg | 7:4.3-2 | DEBIAN-CVE-2020-20896 |
| Debian:14 | ffmpeg | 7:4.3-2 | DEBIAN-CVE-2020-20896 |
| Ubuntu:22.04:LTS | qtwebengine-opensource-src | no fix listed | UBUNTU-CVE-2020-20896 |
| Ubuntu:24.04:LTS | qtwebengine-opensource-src | no fix listed | UBUNTU-CVE-2020-20896 |
| Ubuntu:25.10 | qtwebengine-opensource-src | no fix listed | UBUNTU-CVE-2020-20896 |
Affected products (as reported)
References
- https://trac.ffmpeg.org/ticket/8273 x_refsource_MISC
- https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/dd01947397b98e94c3f2a79d5820aaf4594f4d3b x_refsource_MISC