CVE Vulnerability

CVE-2020-12421

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 This could have caused add-ons to become out-of-date silently without notification to the user.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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://www.mozilla.org/security/advisories/mfsa2020-24/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-25/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-26/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1308251 Issue Tracking Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html Broken Link
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html Broken Link
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html Broken Link
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html Broken Link
https://usn.ubuntu.com/4421-1/ Third Party Advisory
https://security.gentoo.org/glsa/202007-10 Third Party Advisory
https://security.gentoo.org/glsa/202007-09 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
Information

Published : 2020-07-09 03:15

Updated : 2023-01-30 05:21

NVD link : CVE-2020-12421

Mitre link : CVE-2020-12421

Products Affected

Firefox Esr

Mozilla

CWE
CWE-295

Improper Certificate Validation