Mozilla developers and community members reported memory safety bugs present in Firefox 65, Firefox ESR 60.5, and Thunderbird 60.5. 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 Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esr | Aug 22, 2024 | Apr 26, 2019 |
| Amazon Linux Ami 2 | — | Upgrade thunderbird-debuginfoUpgrade thunderbird | Apr 27, 2020 | Apr 26, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Apr 26, 2019 |
| Centos_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefox-debugsourceUpgrade thunderbird-debugsource | Apr 1, 2019 | Mar 19, 2019 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Mar 21, 2019 | Mar 21, 2019 |
| Freebsd | — | Upgrade firefox-esrUpgrade thunderbirdUpgrade firefoxUpgrade linux-thunderbirdUpgrade seamonkeyUpgrade libxulUpgrade linux-firefoxUpgrade linux-seamonkeyUpgrade waterfox | Mar 20, 2019 | Mar 19, 2019 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird.Upgrade www-client/firefox-bin.Upgrade www-client/firefox.Upgrade mail-client/thunderbird-bin. | Apr 3, 2019 | Apr 2, 2019 |
| Huawei Euleros 2_0_sp2 | — | Upgrade firefox | May 1, 2019 | Apr 26, 2019 |
| Huawei Euleros 2_0_sp3 | — | Upgrade firefox | May 30, 2019 | Apr 26, 2019 |
| Mfsa2019 07 | — | Upgrade to Mozilla Firefox version 66.0Upgrade to the latest version of Mozilla Firefox | Mar 20, 2019 | Mar 19, 2019 |
| Mfsa2019 08 | — | Upgrade to Mozilla Firefox ESR version 60.6Upgrade to the latest version of Mozilla Firefox | Mar 20, 2019 | Mar 19, 2019 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 60.6Upgrade to the latest version of Mozilla Thunderbird | Mar 26, 2019 | Mar 19, 2019 |
| Oracle Solaris | — | Upgrade web/browser/firefox to version 60.6.0-11.4.8.0.1.3.0 on Solaris 11.4Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 60.6.1-11.4.9.0.1.2.0 on Solaris 11.4Upgrade mail/thunderbird to version 60.6.1-11.4.9.0.1.2.0 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 60.6.0-11.4.8.0.1.3.0 on Solaris 11.4 | Apr 17, 2019 | Apr 17, 2019 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | Apr 1, 2019 | Mar 20, 2019 |
| Redhat_linux | — | Upgrade thunderbird-debugsourceUpgrade firefoxUpgrade thunderbirdUpgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade thunderbird-debuginfo | Mar 21, 2019 | Mar 20, 2019 |
| Suse | — | Upgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbird-buildsymbolsUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefoxUpgrade MozillaThunderbirdUpgrade MozillaFirefox-translations-commonUpgrade mozillafirefox-buildsymbolsUpgrade MozillaFirefox-develUpgrade MozillaThunderbird-translations-commonUpgrade mozillafirefox-branding-upstream | Apr 1, 2019 | Mar 19, 2019 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Apr 1, 2019 | Mar 19, 2019 |
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