CVE-2021-23973

CVSS V2 Medium 4.3 CVSS V3 Medium 6.5
Description
When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
Overview
  • CVE ID
  • CVE-2021-23973
  • Assigner
  • security@mozilla.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-02-26T02:15:13
  • Last Modified Date
  • 2022-05-27T18:04:21
Weakness Enumerations
CWE URL
CWE-209 http://cwe.mitre.org/data/definitions/209.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* 1 OR 86.0
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* 1 OR 78.8
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* 1 OR 78.8
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:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • 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:H/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1690976 Issue Tracking Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-08/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-09/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-07/ Release Notes Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html Mailing List Third Party Advisory
https://www.debian.org/security/2021/dsa-4866 Third Party Advisory
https://security.gentoo.org/glsa/202104-09
https://security.gentoo.org/glsa/202104-10
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-23973
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23973
History
Created Old Value New Value Data Type Notes
2022-05-10 07:13:30 Added to TrackCVE
2022-12-05 22:50:24 2021-02-26T02:15Z 2021-02-26T02:15:13 CVE Published Date updated
2022-12-05 22:50:24 2022-05-27T18:04:21 CVE Modified Date updated
2022-12-05 22:50:24 Analyzed Vulnerability Status updated