CVE-2021-38171
First published: Sat Aug 21 2021(Updated: )
adts_decode_extradata in libavformat/adtsenc.c in FFmpeg 4.4 does not check the init_get_bits return value, which is a necessary step because the second argument to init_get_bits can be crafted.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FFmpeg FFmpeg | =4.4 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| debian/ffmpeg | 7:4.3.7-0+deb11u1 7:5.1.6-0+deb12u1 7:7.0.2-3 |
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Reference Links
- https://github.com/FFmpeg/FFmpeg/commit/9ffa49496d1aae4cbbb387aac28a9e061a6ab0a6
- https://patchwork.ffmpeg.org/project/ffmpeg/patch/AS8P193MB12542A86E22F8207EC971930B6F19@AS8P193MB1254.EURP193.PROD.OUTLOOK.COM/
- 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://security.gentoo.org/glsa/202312-14
- https://launchpad.net/bugs/cve/CVE-2021-38171
- https://patchwork.ffmpeg.org/project/ffmpeg/patch/AS8P193MB12542A86E22F8207EC971930B6F19%40AS8P193MB1254.EURP193.PROD.OUTLOOK.COM/
- https://security-tracker.debian.org/tracker/CVE-2021-38171
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38171
- https://nvd.nist.gov/vuln/detail/CVE-2021-38171
- https://ubuntu.com/security/CVE-2021-38171
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2021-38171.
What is the affected software?
The affected software is FFmpeg 4.4.
What is the severity of CVE-2021-38171?
The severity of CVE-2021-38171 is not specified in the provided information.
How can I fix the vulnerability in FFmpeg 4.4?
To fix the vulnerability in FFmpeg 4.4, you can apply the official patch provided by FFmpeg or update to version 4.4.2-0ubuntu0.21.10.1.
Where can I find additional information about CVE-2021-38171?
You can find additional information about CVE-2021-38171 on the CVE Mitre website and the GitHub and Patchwork links provided.
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- vendor/ffmpeg
- canonical/ffmpeg ffmpeg
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- version/debian debian linux/9.0
- version/debian debian linux/10.0
- version/debian debian linux/11.0
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