CVE-2020-20453: Divide by Zero
First published: Tue May 25 2021(Updated: )
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
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/8003
- 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-2020-20453
- https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=a7a7f32c8ad0179a1a85d0a8cff35924e6d90be8
- https://security-tracker.debian.org/tracker/CVE-2020-20453
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20453
- https://nvd.nist.gov/vuln/detail/CVE-2020-20453
- https://ubuntu.com/security/CVE-2020-20453
Frequently Asked Questions
What is CVE-2020-20453?
CVE-2020-20453 is a Divide By Zero vulnerability in FFmpeg 4.2 via libavcodec/aaccoder.
How does CVE-2020-20453 impact FFmpeg?
CVE-2020-20453 allows a remote malicious user to cause a Denial of Service (DoS) in FFmpeg 4.2.
Which versions of FFmpeg are affected by CVE-2020-20453?
FFmpeg versions 7:4.4.2-0ubuntu0.21.10.1, 7:3.4.11-0ubuntu0.1, 7:4.2.7-0ubuntu0.1, 4.4.1, 7:2.8.17-0ubuntu0.1+, 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 are affected by CVE-2020-20453.
What is the severity of CVE-2020-20453?
The severity of CVE-2020-20453 is not specified.
How can I fix CVE-2020-20453 in FFmpeg?
To fix CVE-2020-20453 in FFmpeg, update to the recommended version specified in the corresponding security notice from your operating system's vendor.
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