CVE-2021-23973

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-23973
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.

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 HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References
Link Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1690976 Issue Tracking Permissions Required Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202104-09 Third Party Advisory
https://security.gentoo.org/glsa/202104-10 Third Party Advisory
https://www.debian.org/security/2021/dsa-4866 Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2021-07/ Release Notes 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
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

Configuration 2 (hide)

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

27 May 2022, 18:04

Type Values Removed Values Added
References (GENTOO) https://security.gentoo.org/glsa/202104-10 - (GENTOO) https://security.gentoo.org/glsa/202104-10 - Third Party Advisory
References (GENTOO) https://security.gentoo.org/glsa/202104-09 - (GENTOO) https://security.gentoo.org/glsa/202104-09 - Third Party Advisory

01 May 2021, 02:15

Type Values Removed Values Added
References
  • (GENTOO) https://security.gentoo.org/glsa/202104-09 -
  • (GENTOO) https://security.gentoo.org/glsa/202104-10 -

03 Mar 2021, 20:49

Type Values Removed Values Added
CWE CWE-209
CVSS v2 : unknown
v3 : unknown 		v2 : 4.3
v3 : 6.5
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-07/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-07/ - Release Notes, Vendor Advisory
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-09/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-09/ - Release Notes, Vendor Advisory
References (DEBIAN) https://www.debian.org/security/2021/dsa-4866 - (DEBIAN) https://www.debian.org/security/2021/dsa-4866 - Third Party Advisory
References (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1690976 - (MISC) https://bugzilla.mozilla.org/show_bug.cgi?id=1690976 - Issue Tracking, Permissions Required, Vendor Advisory
References (MISC) https://www.mozilla.org/security/advisories/mfsa2021-08/ - (MISC) https://www.mozilla.org/security/advisories/mfsa2021-08/ - Release Notes, Vendor Advisory
References (MLIST) https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html - (MLIST) https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html - Mailing List, Third Party Advisory
CPE cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

02 Mar 2021, 00:15

Type Values Removed Values Added
References
  • (DEBIAN) https://www.debian.org/security/2021/dsa-4866 -

01 Mar 2021, 17:15

Type Values Removed Values Added
References
  • (MLIST) https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html -

26 Feb 2021, 02:44

Type Values Removed Values Added
New CVE
Information

Published : 2021-02-26 02:15

Updated : 2023-12-10 13:41

NVD link : CVE-2021-23973

Mitre link : CVE-2021-23973

CVE.ORG link : CVE-2021-23973

JSON object : View

Products Affected

mozilla

  • thunderbird
  • firefox
  • firefox_esr

debian

  • debian_linux
CWE
CWE-209

Generation of Error Message Containing Sensitive Information