Executive Summary

Informations
Name CVE-2021-23973 First vendor Publication 2021-02-26
Vendor Cve Last vendor Modification 2021-05-01

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Network 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

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23973

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-209 Information Exposure Through an Error Message

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 541
Application 132
Application 417
Os 2

Sources (Detail)

Source Url
DEBIAN https://www.debian.org/security/2021/dsa-4866
GENTOO https://security.gentoo.org/glsa/202104-09
https://security.gentoo.org/glsa/202104-10
MISC https://bugzilla.mozilla.org/show_bug.cgi?id=1690976
https://www.mozilla.org/security/advisories/mfsa2021-07/
https://www.mozilla.org/security/advisories/mfsa2021-08/
https://www.mozilla.org/security/advisories/mfsa2021-09/
MLIST https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html

Alert History

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Date Informations
2021-05-04 13:27:14
  • Multiple Updates
2021-05-01 09:22:54
  • Multiple Updates
2021-04-22 03:12:43
  • Multiple Updates
2021-03-26 12:38:14
  • First insertion