Mozilla developers reported memory safety bugs present in Firefox 70 and Firefox ESR 68.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esrUpgrade firefox | Aug 22, 2024 | Jan 8, 2020 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade thunderbird-debuginfo | Apr 27, 2020 | Jan 8, 2020 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jan 8, 2020 |
| Centos_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade firefox-debugsource | Dec 6, 2019 | Dec 5, 2019 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Dec 12, 2019 | Dec 12, 2019 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox.Upgrade mail-client/thunderbird.Upgrade www-client/firefox-bin. | Mar 13, 2020 | Jan 8, 2020 |
| Mfsa2019 36 | — | Upgrade to Mozilla Firefox version 71.0Upgrade to the latest version of Mozilla Firefox | Dec 4, 2019 | Dec 3, 2019 |
| Mfsa2019 37 | — | Upgrade to Mozilla Firefox ESR version 68.3Upgrade to the latest version of Mozilla Firefox | Dec 4, 2019 | Dec 3, 2019 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 68.3Upgrade to the latest version of Mozilla Thunderbird | Dec 5, 2019 | Dec 3, 2019 |
| Oracle Solaris | — | Upgrade web/browser/firefox to version 68.3.0-11.4.17.0.1.2.0 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 68.3.0-11.4.17.0.1.2.0 on Solaris 11.4Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 68.3.0-11.4.17.0.1.2.0 on Solaris 11.4Upgrade mail/thunderbird to version 68.3.0-11.4.17.0.1.2.0 on Solaris 11.4 | Jan 19, 2021 | Jan 8, 2020 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | Dec 12, 2019 | Dec 3, 2019 |
| Redhat_linux | — | Upgrade thunderbird-debugsourceUpgrade firefox-debugsourceUpgrade firefox-debuginfoNo solution existsUpgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade firefox | Dec 6, 2019 | Dec 5, 2019 |
| Suse | — | Upgrade mozilla-nsprUpgrade mozilla-nspr-develUpgrade MozillaFirefox-translations-commonUpgrade mozilla-nss-32bitUpgrade mozillafirefox-branding-upstreamUpgrade libfreebl3-32bitUpgrade MozillaFirefoxUpgrade libfreebl3Upgrade MozillaThunderbirdUpgrade mozilla-nspr-32bitUpgrade libsoftokn3-32bitUpgrade mozilla-nssUpgrade mozilla-nss-certs-32bitUpgrade libsoftokn3Upgrade MozillaFirefox-translations-otherUpgrade mozillafirefox-buildsymbolsUpgrade MozillaFirefox-develUpgrade mozilla-nss-develUpgrade MozillaThunderbird-translations-otherUpgrade mozilla-nss-toolsUpgrade MozillaThunderbird-translations-commonUpgrade mozilla-nss-certs | Dec 21, 2019 | Dec 9, 2019 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Dec 10, 2019 | Dec 9, 2019 |
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