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).
References
Link | Resource |
---|---|
https://github.com/FFmpeg/FFmpeg/commit/3bce9e9b3ea35c54bacccc793d7da99ea5157532#diff-74f6b92a0541378ad15de9c29c0a2b0c69881ad9ffc71abe568b88b535e00a7f | Patch Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html | Mailing List Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: fedora
Published: 2021-08-05T20:21:37
Updated: 2021-08-15T06:07:08
Reserved: 2021-05-25T00:00:00
Link: CVE-2021-3566
JSON object: View
NVD Information
Status : Analyzed
Published: 2021-08-05T21:15:12.783
Modified: 2022-12-21T15:01:19.963
Link: CVE-2021-3566
JSON object: View
Redhat Information
No data.