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 firefoxUpgrade firefox-esr | 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 firefox-debugsourceUpgrade thunderbird-debugsourceUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade firefox | 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 the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 71.0 | Dec 4, 2019 | Dec 3, 2019 |
| Mfsa2019 37 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 68.3 | Dec 4, 2019 | Dec 3, 2019 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 68.3 | Dec 5, 2019 | Dec 3, 2019 |
| Oracle Solaris | — | Upgrade mail/thunderbird 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 web/browser/firefox 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 thunderbirdUpgrade firefox | Dec 12, 2019 | Dec 3, 2019 |
| Redhat_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoNo solution existsUpgrade firefox-debugsource | Dec 6, 2019 | Dec 5, 2019 |
| Suse | — | Upgrade MozillaThunderbird-translations-commonUpgrade mozilla-nss-develUpgrade mozilla-nss-certs-32bitUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-otherUpgrade mozillafirefox-buildsymbolsUpgrade mozilla-nss-certsUpgrade libsoftokn3Upgrade MozillaThunderbird-translations-otherUpgrade mozilla-nss-toolsUpgrade libfreebl3-32bitUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefoxUpgrade mozilla-nspr-32bitUpgrade mozilla-nsprUpgrade libfreebl3Upgrade MozillaThunderbirdUpgrade MozillaFirefox-translations-commonUpgrade mozilla-nssUpgrade mozilla-nspr-develUpgrade libsoftokn3-32bitUpgrade mozilla-nss-32bit | Dec 21, 2019 | Dec 9, 2019 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Dec 10, 2019 | Dec 9, 2019 |
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