A use-after-free vulnerability can occur when flushing and resizing layout because the "PressShell" object has been freed while still in use. This results in a potentially exploitable crash during these operations. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esr | Feb 21, 2018 | Nov 17, 2017 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jun 11, 2018 |
| Centos_linux | — | Upgrade firefox-debuginfoUpgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debuginfo | Nov 21, 2017 | Nov 14, 2017 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Nov 16, 2017 | Nov 14, 2017 |
| Freebsd | — | Upgrade firefox-esrUpgrade firefoxUpgrade linux-seamonkeyUpgrade thunderbirdUpgrade seamonkeyUpgrade libxulUpgrade linux-thunderbirdUpgrade linux-firefox | Nov 14, 2017 | Nov 14, 2017 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird.Upgrade mail-client/thunderbird-bin. | Apr 5, 2018 | Mar 28, 2018 |
| Mfsa2017 24 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 57.0 | Nov 15, 2017 | Nov 14, 2017 |
| Mfsa2017 25 | — | Upgrade to Mozilla Firefox ESR version 52.5Upgrade to the latest version of Mozilla Firefox | Nov 15, 2017 | Nov 14, 2017 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 52.5Upgrade to the latest version of Mozilla Thunderbird | Nov 27, 2017 | Nov 23, 2017 |
| Oracle Solaris | — | Upgrade mail/thunderbird to version 52.5.0-0.175.3.27.0.4.0 on Solaris 11.3Upgrade web/browser/firefox/plugin/firefox-java to version 52.5.0-0.175.3.27.0.3.0 on Solaris 11.3Upgrade web/data/firefox-bookmarks to version 52.5.0-0.175.3.27.0.3.0 on Solaris 11.3Upgrade web/browser/firefox to version 52.5.0-0.175.3.27.0.3.0 on Solaris 11.3Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 52.5.0-0.175.3.27.0.4.0 on Solaris 11.3 | Dec 19, 2017 | Dec 19, 2017 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | Nov 17, 2017 | Nov 15, 2017 |
| Redhat_linux | — | Upgrade firefox-debuginfoUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade thunderbird | Nov 17, 2017 | Nov 14, 2017 |
| Suse | — | Upgrade MozillaFirefoxUpgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-buildsymbolsUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbirdUpgrade MozillaThunderbird-develUpgrade MozillaThunderbird-translations-commonUpgrade MozillaFirefox-translationsUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-common | Nov 17, 2017 | Nov 14, 2017 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Nov 16, 2017 | Nov 14, 2017 |
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