Description
Prior to ffmpeg version 4.3, the tty demuxer did not have a 'read_probe' function assigned to it. By crafting a legitimate "ffconcat" file that references an image, followed by a file the triggers the tty demuxer, the contents of the second file will be copied into the output file verbatim (as long as the `-vcodec copy` option is passed to ffmpeg).
Published: 2021-08-05
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2742-1 ffmpeg security update
EUVD EUVD EUVD-2021-26876 Prior to ffmpeg version 4.3, the tty demuxer did not have a 'read_probe' function assigned to it. By crafting a legitimate "ffconcat" file that references an image, followed by a file the triggers the tty demuxer, the contents of the second file will be copied into the output file verbatim (as long as the `-vcodec copy` option is passed to ffmpeg).
Ubuntu USN Ubuntu USN USN-5167-1 FFmpeg vulnerabilities
History

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Subscriptions

Debian Debian Linux
Ffmpeg Ffmpeg
cve-icon MITRE

Status: PUBLISHED

Assigner: fedora

Published:

Updated: 2024-08-03T17:01:08.129Z

Reserved: 2021-05-25T00:00:00.000Z

Link: CVE-2021-3566

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-08-05T21:15:12.783

Modified: 2024-11-21T06:21:51.763

Link: CVE-2021-3566

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses