CVE-2020-22020

CVSS V2 Medium 4.3 CVSS V3 Medium 6.5
Description
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.
Overview
  • CVE ID
  • CVE-2020-22020
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-05-26T20:15:08
  • Last Modified Date
  • 2021-11-05T21:57:42
Weakness Enumerations
CWE URL
CWE-120 http://cwe.mitre.org/data/definitions/120.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:ffmpeg:ffmpeg:4.2:-:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=ce5274c1385d55892a692998923802023526b765 Patch Vendor Advisory
https://trac.ffmpeg.org/ticket/8239 Exploit Issue Tracking Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html Mailing List Third Party Advisory
https://www.debian.org/security/2021/dsa-4990 Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-22020
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22020
History
Created Old Value New Value Data Type Notes
2022-05-10 06:48:06 Added to TrackCVE
2022-12-05 03:02:58 2021-05-26T20:15Z 2021-05-26T20:15:08 CVE Published Date updated
2022-12-05 03:02:58 2021-11-05T21:57:42 CVE Modified Date updated
2022-12-05 03:02:58 Analyzed Vulnerability Status updated