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Mozilla Firefox before 36.0 does not properly recognize the equivalence of domain names with and without a trailing . (dot) character, which allows man-in-the-middle attackers to bypass the HPKP and HSTS protection mechanisms by constructing a URL with this character and leveraging access to an X.509 certificate for a domain with this character.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade linux-thunderbirdUpgrade firefox-esrUpgrade libxulUpgrade thunderbirdUpgrade linux-seamonkeyUpgrade firefoxUpgrade seamonkeyUpgrade linux-firefox | Dec 10, 2025 | Feb 27, 2015 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox.Upgrade dev-libs/nspr.Upgrade www-client/firefox-bin.Upgrade www-client/seamonkey-bin.Upgrade mail-client/thunderbird.Upgrade www-client/seamonkey. | Oct 30, 2017 | Feb 25, 2015 |
| Mfsa2015 13 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 36.0 | Feb 26, 2015 | Feb 25, 2015 |
| Mozilla Seamonkey | — | Upgrade to the latest version of Mozilla SeaMonkeyUpgrade to Mozilla SeaMonkey version 2.33 | Mar 23, 2015 | Feb 25, 2015 |
| Oracle Solaris | — | Upgrade web/browser/firefox to version 38.4.0-0.175.3.8.0.2.0 on Solaris 11.3Upgrade runtime/tcl-8/tcl-sqlite-3 to version 3.9.2-0.175.3.8.0.2.0 on Solaris 11.3Upgrade database/sqlite-3 to version 3.9.2-0.175.3.8.0.2.0 on Solaris 11.3Upgrade database/sqlite-3/documentation to version 3.9.2-0.175.3.8.0.2.0 on Solaris 11.3 | May 29, 2017 | Feb 25, 2015 |
| Suse | — | Upgrade MozillaFirefoxUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefox-devel | Dec 18, 2015 | Feb 25, 2015 |
| Ubuntu | — | Upgrade firefox | Nov 8, 2024 | Feb 25, 2015 |
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