A use-after-free vulnerability occurs when redirecting focus handling which results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esr | Nov 8, 2019 | Jun 11, 2018 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jun 11, 2018 |
| Centos_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-debuginfoUpgrade thunderbird-debuginfo | Apr 21, 2017 | Apr 20, 2017 |
| Debian | — | Upgrade firefox-esr | Apr 20, 2017 | Apr 20, 2017 |
| Freebsd | — | Upgrade firefoxUpgrade thunderbirdUpgrade linux-thunderbirdUpgrade firefox-esrUpgrade libxulUpgrade linux-firefoxUpgrade linux-seamonkeyUpgrade seamonkey | Apr 20, 2017 | Apr 19, 2017 |
| Gentoo Linux | — | Upgrade www-client/firefox.Upgrade www-client/firefox-bin. | Feb 20, 2018 | Feb 20, 2018 |
| Mfsa2017 10 | — | Upgrade to Mozilla Firefox version 53.0Upgrade to the latest version of Mozilla Firefox | Jul 12, 2018 | Jun 11, 2018 |
| Mfsa2017 11 | — | Upgrade to Mozilla Firefox ESR version 45.9Upgrade to the latest version of Mozilla Firefox | Apr 20, 2017 | Apr 19, 2017 |
| Mfsa2017 12 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 52.1 | Apr 20, 2017 | Apr 19, 2017 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 52.1 | May 2, 2017 | Apr 30, 2017 |
| Oracle Solaris | — | Upgrade web/browser/firefox to version 45.9.0-0.175.3.20.0.3.0 on Solaris 11.3Upgrade web/data/firefox-bookmarks to version 45.9.0-0.175.3.20.0.3.0 on Solaris 11.3Upgrade web/browser/firefox/plugin/firefox-java to version 45.9.0-0.175.3.20.0.3.0 on Solaris 11.3Upgrade entire/ to version 11.4-11.4.0.0.1.15.0 on Solaris 11.4 | May 29, 2017 | May 29, 2017 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | Apr 20, 2017 | Apr 19, 2017 |
| Redhat_linux | — | Upgrade thunderbirdUpgrade firefoxNo solution existsUpgrade firefox-debuginfoUpgrade thunderbird-debuginfo | Apr 20, 2017 | Apr 20, 2017 |
| Suse | — | Upgrade java-1_8_0-openjdkUpgrade libfreebl3-32bitUpgrade MozillaFirefox-translationsUpgrade libsoftokn3-hmacUpgrade libfreebl3-hmacUpgrade libfreebl3-hmac-32bitUpgrade mozilla-nspr-x86Upgrade mozilla-nss-32bitUpgrade MozillaThunderbird-debugsourceUpgrade mozilla-nss-certs-32bitUpgrade java-1_8_0-openjdk-demoUpgrade libsoftokn3-hmac-32bitUpgrade mozilla-nssUpgrade MozillaThunderbird-develUpgrade MozillaFirefoxUpgrade libsoftokn3-x86Upgrade libfreebl3-x86Upgrade MozillaThunderbird-translations-commonUpgrade mozilla-nspr-32bitUpgrade mozilla-nsprUpgrade mozilla-nspr-develUpgrade libfreebl3Upgrade java-1_8_0-openjdk-headlessUpgrade MozillaFirefox-develUpgrade mozilla-nss-toolsUpgrade libsoftokn3Upgrade MozillaThunderbird-buildsymbolsUpgrade libsoftokn3-32bitUpgrade mozillafirefox-branding-sleUpgrade mozilla-nss-sysinitUpgrade mozilla-nss-x86Upgrade MozillaThunderbird-debuginfoUpgrade MozillaThunderbirdUpgrade mozilla-nss-sysinit-32bitUpgrade MozillaThunderbird-translations-otherUpgrade java-1_8_0-openjdk-develUpgrade mozilla-nss-develUpgrade mozilla-nss-certs | May 4, 2017 | Apr 20, 2017 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Apr 21, 2017 | Apr 20, 2017 |
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