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Debian: CVE-2021-3566: ffmpeg -- security update

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Debian: CVE-2021-3566: ffmpeg -- security update

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
08/05/2021
Created
08/16/2021
Added
08/16/2021
Modified
08/16/2021

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).

Solution(s)

  • debian-upgrade-ffmpeg

References

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