CVE-2021-3566: Infoleak
First published: Thu Aug 05 2021(Updated: )
Last updated 24 July 2024
Credit: patrick@puiterwijk.org patrick@puiterwijk.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FFmpeg FFmpeg | <4.3 | |
| Debian Debian Linux | =9.0 | |
| 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 |
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Reference Links
- https://github.com/FFmpeg/FFmpeg/commit/3bce9e9b3ea35c54bacccc793d7da99ea5157532#diff-74f6b92a0541378ad15de9c29c0a2b0c69881ad9ffc71abe568b88b535e00a7f
- https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html
- https://launchpad.net/bugs/cve/CVE-2021-3566
- https://github.com/FFmpeg/FFmpeg/commit/3bce9e9b3ea35c54bacccc793d7da99ea5157532
- https://github.com/FFmpeg/FFmpeg/commit/97ee4a451b5b1eb0010664b4a8c048d6c8c06a8a
- https://security-tracker.debian.org/tracker/CVE-2021-3566
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3566
- https://nvd.nist.gov/vuln/detail/CVE-2021-3566
- https://ubuntu.com/security/CVE-2021-3566
Frequently Asked Questions
What is CVE-2021-3566?
CVE-2021-3566 is a vulnerability in ffmpeg prior to version 4.3.
How does CVE-2021-3566 affect ffmpeg?
CVE-2021-3566 affects ffmpeg versions prior to 4.3.
What is the impact of CVE-2021-3566?
By crafting a legitimate ffconcat file that references an image followed by a file that triggers the tty demuxer, an attacker could copy the contents of the second file into the output file.
How can I fix CVE-2021-3566 in Ubuntu?
To fix CVE-2021-3566 in Ubuntu, update ffmpeg to version 4.3 or later.
How can I fix CVE-2021-3566 in Debian?
To fix CVE-2021-3566 in Debian, update ffmpeg to version 7:4.1.9-0+deb10u1, 7:4.1.11-0+deb10u1, 7:4.3.6-0+deb11u1, 7:5.1.3-1, or 7:6.0-7.
- agent/type
- collector/launchpad-cve
- source/Launchpad
- agent/author
- agent/severity
- agent/remedy
- agent/weakness
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-index
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- collector/usn-cve
- source/Ubuntu
- agent/references
- agent/tags
- agent/description
- agent/first-publish-date
- agent/event
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- agent/trending
- vendor/ffmpeg
- canonical/ffmpeg ffmpeg
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- package-manager/debian