CVE-2021-3566
published 2021-08-05CVE-2021-3566: 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…
PriorityP422medium5.5CVSS 3.1
AVLACLPRNUIRSUCHINAN
EPSS
0.88%
55.4th percentile
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).
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | ffmpeg | < ffmpeg 7:4.3-2 (bookworm) | ffmpeg 7:4.3-2 (bookworm) |
| ffmpeg | ffmpeg | < 4.3 | 4.3 |
| ffmpeg | ffmpeg | — | — |
| ffmpeg | ffmpeg | >= 0 < 7:4.3-2 | 7:4.3-2 |
| ffmpeg | ffmpeg | >= 0 < 7:4.3-2 | 7:4.3-2 |
| ffmpeg | ffmpeg | >= 0 < 7:4.3-2 | 7:4.3-2 |
| ffmpeg | ffmpeg | >= 0 < 7:4.3-2 | 7:4.3-2 |
| ffmpeg | ffmpeg | >= 0 < 7:2.8.17-0ubuntu0.1+esm4 | 7:2.8.17-0ubuntu0.1+esm4 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
osv6.5MEDIUM
vendor_ubuntu6.5MEDIUM
vendor_debian5.5MEDIUM
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OSV
ffmpeg vulnerabilities
osv·2022-06-13·CVSS 6.5
CVE-2020-20445 [MEDIUM] ffmpeg vulnerabilities
ffmpeg vulnerabilities
It was discovered that FFmpeg did not properly verify certain input when
processing video and audio files. An attacker could possibly use this to send
specially crafted input to the application, force a division by zero, and
cause a denial of service (application crash). (CVE-2020-20445, CVE-2020-20446,
CVE-2020-20453, CVE-2020-20892)
It was discovered that FFmpeg did not properly perform certain bit shift and
memory operations. An attacker could possibly use this issue to expose
sensitive information. (CVE-2020-20902)
It was discovered that FFmpeg did not properly perform memory management
operations in various of its functions. An attacker could possibly use this
issue to send specially crafted input to the application and cause a denial of
service (application
GHSA
GHSA-742p-65hp-7vgf: Prior to ffmpeg version 4
ghsa_unreviewed·2022-05-24
CVE-2021-3566 [MEDIUM] GHSA-742p-65hp-7vgf: Prior to ffmpeg version 4
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).
OSV
CVE-2021-3566: Prior to ffmpeg version 4
osv·2021-08-05·CVSS 5.5
CVE-2021-3566 [MEDIUM] CVE-2021-3566: Prior to ffmpeg version 4
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
FFmpeg vulnerabilities
vendor_ubuntu·2022-06-13·CVSS 6.5
CVE-2020-35965 [MEDIUM] FFmpeg vulnerabilities
Title: FFmpeg vulnerabilities
Summary: Several security issues were fixed in FFmpeg.
It was discovered that FFmpeg did not properly verify certain input when
processing video and audio files. An attacker could possibly use this to send
specially crafted input to the application, force a division by zero, and
cause a denial of service (application crash). (CVE-2020-20445, CVE-2020-20446,
CVE-2020-20453, CVE-2020-20892)
It was discovered that FFmpeg did not properly perform certain bit shift and
memory operations. An attacker could possibly use this issue to expose
sensitive information. (CVE-2020-20902)
It was discovered that FFmpeg did not properly perform memory management
operations in various of its functions. An attacker could possibly use this
issue to send specially crafted input
Debian
CVE-2021-3566: ffmpeg - Prior to ffmpeg version 4.3, the tty demuxer did not have a 'read_probe' functio...
vendor_debian·2021·CVSS 5.5
CVE-2021-3566 [MEDIUM] CVE-2021-3566: ffmpeg - Prior to ffmpeg version 4.3, the tty demuxer did not have a 'read_probe' functio...
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).
Scope: local
bookworm: resolved (fixed in 7:4.3-2)
bullseye: resolved (fixed in 7:4.3-2)
forky: resolved (fixed in 7:4.3-2)
sid: resolved (fixed in 7:4.3-2)
trixie: resolved (fixed in 7:4.3-2)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/FFmpeg/FFmpeg/commit/3bce9e9b3ea35c54bacccc793d7da99ea5157532#diff-74f6b92a0541378ad15de9c29c0a2b0c69881ad9ffc71abe568b88b535e00a7fhttps://lists.debian.org/debian-lts-announce/2021/08/msg00018.htmlhttps://github.com/FFmpeg/FFmpeg/commit/3bce9e9b3ea35c54bacccc793d7da99ea5157532#diff-74f6b92a0541378ad15de9c29c0a2b0c69881ad9ffc71abe568b88b535e00a7fhttps://lists.debian.org/debian-lts-announce/2021/08/msg00018.html
2021-08-05
Published