CVE-2020-22027: Buffer Overflow
First published: Thu May 27 2021(Updated: )
A heap-based Buffer Overflow vulnerability exits in FFmpeg 4.2 in deflate16 at libavfilter/vf_neighbor.c, which might lead to memory corruption and other potential consequences.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FFmpeg FFmpeg | =4.2 | |
| Debian Debian Linux | =10.0 | |
| debian/ffmpeg | 7:4.3.7-0+deb11u1 7:5.1.6-0+deb12u1 7:7.0.2-3 |
Remedy
https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=e787f8fd7ee99ba0c3e0f086ce2ce59eea7ed86c
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Reference Links
- https://trac.ffmpeg.org/attachment/ticket/8242/gdb-vf_neighbor_191
- https://trac.ffmpeg.org/ticket/8242
- https://www.debian.org/security/2021/dsa-4990
- https://launchpad.net/bugs/cve/CVE-2020-22027
- https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=e787f8fd7ee99ba0c3e0f086ce2ce59eea7ed86c
- https://security-tracker.debian.org/tracker/CVE-2020-22027
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22027
- https://nvd.nist.gov/vuln/detail/CVE-2020-22027
- https://ubuntu.com/security/CVE-2020-22027
Frequently Asked Questions
What is CVE-2020-22027?
CVE-2020-22027 is a heap-based Buffer Overflow vulnerability that exists in FFmpeg 4.2 in deflate16 at libavfilter/vf_neighbor.c.
What are the potential consequences of CVE-2020-22027?
CVE-2020-22027 might lead to memory corruption and other potential consequences.
Which software versions are affected by CVE-2020-22027?
FFmpeg versions 4.2.7-0ubuntu0.1, 4.3, 4.1.9-0+deb10u1, 4.1.11-0+deb10u1, 4.3.6-0+deb11u1, 5.1.3-1, and 6.0-7 are affected by CVE-2020-22027.
How can I fix CVE-2020-22027?
To fix CVE-2020-22027, update FFmpeg to version 7:4.2.7-0ubuntu0.1 or apply the recommended fixes provided by Ubuntu or Debian.
Where can I find more information about CVE-2020-22027?
You can find more information about CVE-2020-22027 on the MITRE CVE website and the FFmpeg Trac ticket.
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