CVEvulnerability
CVE-2020-12421
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-07-09
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-295
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 This could have caused add-ons to become out-of-date silently without notification to the user.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.
Affected configurations
• mozilla firefox (< 78.0)
• mozilla firefox esr (< 68.10.0)
• mozilla thunderbird (< 68.10.0)
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 19.10
• canonical ubuntu linux 20.04
Related
Weakness · CWE (1)
- CWE-295 Improper Certificate Validation weakness
References
- 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://bugzilla.mozilla.org/show_bug.cgi?id=1308251 Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/202007-09 Third Party Advisory
- https://security.gentoo.org/glsa/202007-10 Third Party Advisory
- https://usn.ubuntu.com/4421-1/ Third Party Advisory
- 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
- 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://bugzilla.mozilla.org/show_bug.cgi?id=1308251 Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/202007-09 Third Party Advisory
- https://security.gentoo.org/glsa/202007-10 Third Party Advisory
- https://usn.ubuntu.com/4421-1/ Third Party Advisory
- 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