Mozilla developers and community members reported memory safety bugs present in Firefox 62 and Firefox ESR 60.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esr | Apr 16, 2019 | Feb 28, 2019 |
| Amazon Linux Ami 2 | — | Upgrade thunderbird-debuginfoUpgrade thunderbird | Apr 27, 2020 | Feb 28, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Feb 28, 2019 |
| Centos_linux | — | Upgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade firefox | Oct 27, 2018 | Oct 23, 2018 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Oct 25, 2018 | Oct 23, 2018 |
| Freebsd | — | Upgrade linux-thunderbirdUpgrade linux-firefoxUpgrade firefox-esrUpgrade waterfoxUpgrade thunderbirdUpgrade firefoxUpgrade libxulUpgrade seamonkeyUpgrade linux-seamonkey | Oct 24, 2018 | Oct 23, 2018 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade mail-client/thunderbird.Upgrade www-client/firefox.Upgrade www-client/firefox-bin. | Nov 9, 2018 | Nov 9, 2018 |
| Mfsa2018 26 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 63.0 | Oct 24, 2018 | Oct 23, 2018 |
| Mfsa2018 27 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 60.3 | Oct 24, 2018 | Oct 23, 2018 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 60.3 | Nov 1, 2018 | Oct 31, 2018 |
| Oracle Solaris | — | Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 60.6.1-11.4.9.0.1.2.0 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 60.5.0-11.4.6.0.1.4.0 on Solaris 11.4Upgrade web/browser/firefox to version 60.5.0-11.4.6.0.1.4.0 on Solaris 11.4Upgrade mail/thunderbird to version 60.6.1-11.4.9.0.1.2.0 on Solaris 11.4 | Feb 20, 2019 | Feb 20, 2019 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefox | Nov 2, 2018 | Oct 23, 2018 |
| Redhat_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade firefox-debuginfo | Oct 25, 2018 | Oct 24, 2018 |
| Suse | — | Upgrade MozillaFirefox-develUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-otherUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox-translations-commonUpgrade mozillafirefox-buildsymbolsUpgrade MozillaThunderbird-translations-commonUpgrade MozillaThunderbird-buildsymbolsUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbird | Oct 26, 2018 | Oct 23, 2018 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Nov 7, 2018 | Oct 23, 2018 |
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