Executive Summary

Informations
Name CVE-2020-12421 First vendor Publication 2020-07-09
Vendor Cve Last vendor Modification 2020-07-27

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/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 None
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:P/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 performing add-on updates, certificate chains terminating in non-built-in-roots were rejected (even if they were legitimately added by an administrator.) This could have caused add-ons to become out-of-date silently without notification to the user. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12421

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-295 Certificate Issues

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 538
Application 132
Application 417

Sources (Detail)

Source Url
GENTOO https://security.gentoo.org/glsa/202007-09
https://security.gentoo.org/glsa/202007-10
MISC https://bugzilla.mozilla.org/show_bug.cgi?id=1308251
https://www.mozilla.org/security/advisories/mfsa2020-24/
https://www.mozilla.org/security/advisories/mfsa2020-25/
https://www.mozilla.org/security/advisories/mfsa2020-26/
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html
UBUNTU https://usn.ubuntu.com/4421-1/

Alert History

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Date Informations
2020-07-27 09:22:41
  • Multiple Updates
2020-07-22 21:23:07
  • Multiple Updates
2020-07-20 21:23:05
  • Multiple Updates
2020-07-18 09:22:46
  • Multiple Updates
2020-07-16 00:22:49
  • Multiple Updates
2020-07-13 09:22:45
  • Multiple Updates
2020-07-09 21:23:00
  • First insertion