Description
Mozilla Firefox before 26.0, Firefox ESR 24.x before 24.2, Thunderbird before 24.2, and SeaMonkey before 2.23 do not recognize a user's removal of trust from an EV X.509 certificate, which makes it easier for man-in-the-middle attackers to spoof SSL servers in opportunistic circumstances via a valid certificate that is unacceptable to the user.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
| openSUSE Tumbleweed | MozillaThunderbird | 45.5.1-1.1 | openSUSE-SU-2024:10230-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Advisories 3
- openSUSE-SU-2024:10230-1 MozillaThunderbird-45.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10071-1 MozillaFirefox-50.1.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- 64213 vdb-entry
- openSUSE-SU-2013:1958 vendor-advisory
- SUSE-SU-2013:1919 vendor-advisory
- openSUSE-SU-2013:1957 vendor-advisory
- FEDORA-2013-23127 vendor-advisory
- FEDORA-2013-23519 vendor-advisory
- 1029470 vdb-entry
- openSUSE-SU-2013:1917 vendor-advisory
- openSUSE-SU-2013:1959 vendor-advisory
- GLSA-201504-01 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- openSUSE-SU-2013:1916 vendor-advisory
- openSUSE-SU-2014:0008 vendor-advisory
- 1029476 vdb-entry
- openSUSE-SU-2013:1918 vendor-advisory
- FEDORA-2013-23291 vendor-advisory
- USN-2052-1 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=917380
- http://www.mozilla.org/security/announce/2013/mfsa2013-113.html
- USN-2053-1 vendor-advisory
- FEDORA-2013-23295 vendor-advisory