VDB
DEBIAN-CVE-2021-3566
DEBIAN-CVE-2021-3566
PUBLISHED
CVSS 5.5 MEDIUM
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).
Risk Scores
CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | ffmpeg | 0, 0, 0 |
| Debian:11 | ffmpeg | 0, 0, 0 |
| Debian:12 | ffmpeg | 0, 0, 0 |
| Debian:13 | ffmpeg | 0, 0, 0 |
Timeline
- Aug 5, 2021 CVE Published
- Apr 28, 2026 CVE Updated