The Public Key Pinning (PKP) implementation in Mozilla Firefox before 33.0 does not properly consider the connection-coalescing behavior of SPDY and HTTP/2 in the case of a shared IP address, which allows man-in-the-middle attackers to bypass an intended pinning configuration and spoof a web site by providing a valid certificate from an arbitrary recognized Certification Authority.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade firefoxUpgrade libxulUpgrade linux-firefoxUpgrade seamonkeyUpgrade thunderbirdUpgrade linux-seamonkeyUpgrade linux-thunderbirdUpgrade firefox-esr | Dec 10, 2025 | Oct 14, 2014 |
| Gentoo Linux | — | Upgrade www-client/firefox.Upgrade www-client/seamonkey.Upgrade mail-client/thunderbird.Upgrade www-client/firefox-bin.Upgrade dev-libs/nspr.Upgrade www-client/seamonkey-bin.Upgrade mail-client/thunderbird-bin. | Oct 30, 2017 | Oct 15, 2014 |
| Mfsa2014 80 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 33.0 | Oct 16, 2014 | Oct 14, 2014 |
| Mozilla Seamonkey | — | Upgrade to Mozilla SeaMonkey version 2.30.0 | Dec 11, 2014 | Oct 15, 2014 |
| Oracle Solaris | — | Upgrade database/sqlite-3/documentation 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 runtime/tcl-8/tcl-sqlite-3 to version 3.9.2-0.175.3.8.0.2.0 on Solaris 11.3Upgrade web/browser/firefox to version 38.4.0-0.175.3.8.0.2.0 on Solaris 11.3 | May 29, 2017 | Oct 15, 2014 |
| Suse | — | Upgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-other | Dec 18, 2015 | Oct 15, 2014 |
| Ubuntu | — | Upgrade firefox | Nov 8, 2024 | Oct 15, 2014 |
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