Debian Security Bug TrackerDEBIANCVE:CVE-2021-3566CVE-2021-3566
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS
Percentile
39.3%
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).
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | ffmpeg | < 7:4.3-2 | ffmpeg_7:4.3-2_all.deb |
| Debian | 11 | all | ffmpeg | < 7:4.3-2 | ffmpeg_7:4.3-2_all.deb |
| Debian | 999 | all | ffmpeg | < 7:4.3-2 | ffmpeg_7:4.3-2_all.deb |
| Debian | 13 | all | ffmpeg | < 7:4.3-2 | ffmpeg_7:4.3-2_all.deb |
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS
Percentile
39.3%