CVE-2020-22026: Buffer Overflow
First published: Wed May 26 2021(Updated: )
Buffer Overflow vulnerability exists in FFmpeg 4.2 in the config_input function at libavfilter/af_tremolo.c, which could let a remote malicious user cause a Denial of Service.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/ffmpeg | 7:4.3.7-0+deb11u1 7:4.3.8-0+deb11u1 7:5.1.6-0+deb12u1 7:7.0.2-3 7:7.1-3 | |
| FFmpeg | =4.2 | |
| Debian GNU/Linux | =9.0 | |
| Debian GNU/Linux | =10.0 |
Remedy
https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=58bb9d3a3a6ede1c6cfb82bf671a5f138e6b2144
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Reference Links
- https://trac.ffmpeg.org/ticket/8317
- https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html
- https://www.debian.org/security/2021/dsa-4990
- https://launchpad.net/bugs/cve/CVE-2020-22026
- https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=58bb9d3a3a6ede1c6cfb82bf671a5f138e6b2144
- https://security-tracker.debian.org/tracker/CVE-2020-22026
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22026
- https://nvd.nist.gov/vuln/detail/CVE-2020-22026
- https://ubuntu.com/security/CVE-2020-22026
Frequently Asked Questions
What is CVE-2020-22026?
CVE-2020-22026 is a Buffer Overflow vulnerability in FFmpeg 4.2.
How does the Buffer Overflow vulnerability in FFmpeg 4.2 work?
The Buffer Overflow vulnerability exists in the config_input function at libavfilter/af_tremolo.c in FFmpeg 4.2, which could be exploited by a remote malicious user to cause a Denial of Service.
Which software versions are affected by CVE-2020-22026?
The affected software versions include FFmpeg 4.2 and 7:3.4.11-0ubuntu0.1, 7:4.2.7-0ubuntu0.1, 4.3, 7:4.1.9-0+deb10u1, 7:4.1.11-0+deb10u1, 7:4.3.6-0+deb11u1, 7:5.1.3-1, and 7:6.0-7.
How can I fix the Buffer Overflow vulnerability in FFmpeg 4.2?
To fix the vulnerability, update FFmpeg to version 7:3.4.11-0ubuntu0.1 or higher.
Where can I find more information about CVE-2020-22026?
You can find more information about CVE-2020-22026 on the MITRE CVE website, the FFmpeg ticket tracker, and the Ubuntu security notices.
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