CVE-2020-20445: Divide by Zero
First published: Tue May 25 2021(Updated: )
FFmpeg 4.2 is affected by a Divide By Zero issue via libavcodec/lpc.h, which allows a remote malicious user to 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 | |
| Debian GNU/Linux | =11.0 |
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Reference Links
- https://trac.ffmpeg.org/ticket/7996
- https://www.debian.org/security/2021/dsa-4990
- https://www.debian.org/security/2021/dsa-4998
- https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html
- https://launchpad.net/bugs/cve/CVE-2020-20445
- https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/38d18fb57863bb9c54e68ae44aa780c5c282a184
- https://security-tracker.debian.org/tracker/CVE-2020-20445
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20445
- https://nvd.nist.gov/vuln/detail/CVE-2020-20445
- https://ubuntu.com/security/CVE-2020-20445
Frequently Asked Questions
What is CVE-2020-20445?
CVE-2020-20445 is a vulnerability in FFmpeg 4.2 that allows a remote malicious user to cause a Denial of Service through a Divide By Zero issue.
How does CVE-2020-20445 affect FFmpeg?
CVE-2020-20445 affects FFmpeg 4.2 through a Divide By Zero issue in libavcodec/lpc.h.
What is the severity of CVE-2020-20445?
The severity of CVE-2020-20445 is not mentioned in the provided information.
Which versions of FFmpeg are affected by CVE-2020-20445?
FFmpeg 4.2, 4.2.x, 3.4.11, 4.4.2, 4.4.x, 4.2.7, 4.1.9, 4.1.11, 4.3.6, 5.1.3, and 6.0-7 are affected by CVE-2020-20445.
How can I fix CVE-2020-20445?
Apply the latest security updates provided by Ubuntu or Debian for FFmpeg to fix CVE-2020-20445.
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