Executive Summary

Informations
Name CVE-2021-3566 First vendor Publication 2021-08-05
Vendor Cve Last vendor Modification 2022-12-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required None User Interaction Required
Scope Unchanged Confidentiality Impact High
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:N/A:N)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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).

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3566

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 229
Os 1

Sources (Detail)

Source Url
MISC https://github.com/FFmpeg/FFmpeg/commit/3bce9e9b3ea35c54bacccc793d7da99ea5157...
MLIST https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html

Alert History

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Date Informations
2023-01-04 12:59:30
  • Multiple Updates
2021-09-23 21:23:31
  • Multiple Updates
2021-09-20 17:23:04
  • Multiple Updates
2021-08-19 09:22:56
  • Multiple Updates
2021-08-15 13:22:50
  • Multiple Updates
2021-08-14 00:22:54
  • Multiple Updates
2021-08-06 17:22:48
  • Multiple Updates
2021-08-06 00:22:48
  • First insertion