CVE-2020-22020

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-22020
Buffer Overflow vulnerability in FFmpeg 4.2 in the build_diff_map function in libavfilter/vf_fieldmatch.c, which could let a remote malicious user cause a Denial of Service.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
http://git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=ce5274c1385d55892a692998923802023526b765
https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html Mailing List Third Party Advisory
https://trac.ffmpeg.org/ticket/8239 Exploit Issue Tracking Vendor Advisory
https://www.debian.org/security/2021/dsa-4990 Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:ffmpeg:ffmpeg:4.2:-:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
History

07 Nov 2023, 03:19

Type Values Removed Values Added
References
  • {'url': 'http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=ce5274c1385d55892a692998923802023526b765', 'name': 'http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=ce5274c1385d55892a692998923802023526b765', 'tags': ['Patch', 'Vendor Advisory'], 'refsource': 'MISC'}
  • () http://git.videolan.org/?p=ffmpeg.git%3Ba=commitdiff%3Bh=ce5274c1385d55892a692998923802023526b765 -

05 Nov 2021, 21:57

Type Values Removed Values Added
CPE cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
References (DEBIAN) https://www.debian.org/security/2021/dsa-4990 - (DEBIAN) https://www.debian.org/security/2021/dsa-4990 - Third Party Advisory

20 Oct 2021, 11:15

Type Values Removed Values Added
References
  • (DEBIAN) https://www.debian.org/security/2021/dsa-4990 -

20 Sep 2021, 12:15

Type Values Removed Values Added
References
  • (MLIST) https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html - Mailing List, Third Party Advisory
CPE cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

03 Jun 2021, 12:38

Type Values Removed Values Added
References (MISC) http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=ce5274c1385d55892a692998923802023526b765 - (MISC) http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=ce5274c1385d55892a692998923802023526b765 - Patch, Vendor Advisory
References (MISC) https://trac.ffmpeg.org/ticket/8239 - (MISC) https://trac.ffmpeg.org/ticket/8239 - Exploit, Issue Tracking, Vendor Advisory
CWE CWE-120
CVSS v2 : unknown
v3 : unknown 		v2 : 4.3
v3 : 6.5
CPE cpe:2.3:a:ffmpeg:ffmpeg:4.2:-:*:*:*:*:*:*

26 May 2021, 20:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-05-26 20:15

Updated : 2023-12-10 13:55

NVD link : CVE-2020-22020

Mitre link : CVE-2020-22020

CVE.ORG link : CVE-2020-22020

JSON object : View

Products Affected

debian

  • debian_linux

ffmpeg

  • ffmpeg
CWE
CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')