CVE-2020-12421

medium

Description

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 This could have caused add-ons to become out-of-date silently without notification to the user.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

References

https://www.mozilla.org/security/advisories/mfsa2020-26/

https://www.mozilla.org/security/advisories/mfsa2020-25/

https://www.mozilla.org/security/advisories/mfsa2020-24/

https://usn.ubuntu.com/4421-1/

https://security.gentoo.org/glsa/202007-10

https://security.gentoo.org/glsa/202007-09

https://bugzilla.mozilla.org/show_bug.cgi?id=1308251

Details

Source: Mitre, NVD

Published: 2020-07-09

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Severity: Medium