Several fonts on OS X display some Tibetan and Arabic characters as whitespace. When used in the addressbar as part of an IDN this can be used for domain name spoofing attacks. Note: This attack only affects OS X operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esr | Dec 1, 2017 | Oct 25, 2017 |
| Freebsd | — | Upgrade linux-seamonkeyUpgrade thunderbirdUpgrade libxulUpgrade firefoxUpgrade seamonkeyUpgrade linux-firefoxUpgrade firefox-esrUpgrade linux-thunderbird | Sep 29, 2017 | Sep 29, 2017 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird.Upgrade mail-client/thunderbird-bin. | Apr 5, 2018 | Mar 28, 2018 |
| Mfsa2017 21 | — | Upgrade to Mozilla Firefox version 56.0Upgrade to the latest version of Mozilla Firefox | Jul 12, 2018 | Jun 11, 2018 |
| Mfsa2017 22 | — | Upgrade to Mozilla Firefox ESR version 52.4Upgrade to the latest version of Mozilla Firefox | Sep 29, 2017 | Sep 28, 2017 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 52.4 | Oct 11, 2017 | Oct 9, 2017 |
| Oracle Solaris | — | Upgrade mail/thunderbird to version 52.4.0-0.175.3.26.0.4.0 on Solaris 11.3Upgrade web/data/firefox-bookmarks to version 52.4.0-0.175.3.25.0.3.0 on Solaris 11.3Upgrade web/browser/firefox to version 52.4.0-0.175.3.25.0.3.0 on Solaris 11.3Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 52.4.0-0.175.3.26.0.4.0 on Solaris 11.3Upgrade web/browser/firefox/plugin/firefox-java to version 52.4.0-0.175.3.25.0.3.0 on Solaris 11.3 | Nov 30, 2017 | Nov 30, 2017 |
| Suse | — | Upgrade mozilla-nss-toolsUpgrade MozillaFirefox-translations-otherUpgrade libsoftokn3-hmacUpgrade mozilla-nss-x86Upgrade MozillaFirefox-translationsUpgrade libfreebl3-32bitUpgrade MozillaFirefoxUpgrade mozilla-nss-develUpgrade MozillaThunderbird-buildsymbolsUpgrade libsoftokn3Upgrade libfreebl3Upgrade mozilla-nss-sysinit-32bitUpgrade libfreebl3-x86Upgrade MozillaThunderbird-translations-otherUpgrade mozilla-nss-certs-32bitUpgrade mozilla-nssUpgrade mozilla-nss-32bitUpgrade mozilla-nss-certsUpgrade mozilla-nss-sysinitUpgrade libsoftokn3-32bitUpgrade libsoftokn3-hmac-32bitUpgrade libsoftokn3-x86Upgrade MozillaThunderbird-develUpgrade MozillaFirefox-translations-commonUpgrade libfreebl3-hmacUpgrade libfreebl3-hmac-32bitUpgrade MozillaFirefox-develUpgrade MozillaThunderbird-translations-commonUpgrade MozillaThunderbird | Oct 10, 2017 | Sep 28, 2017 |
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