Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firefox ESR 68.4. 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. In general, these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefoxUpgrade firefox-esrUpgrade thunderbird | Mar 24, 2020 | Mar 2, 2020 |
| Amazon Linux Ami 2 | — | Upgrade thunderbird-debuginfoUpgrade thunderbird | Apr 27, 2020 | Mar 2, 2020 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Mar 2, 2020 |
| Centos_linux | — | Upgrade thunderbird-debugsourceUpgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade thunderbird | Feb 18, 2020 | Feb 17, 2020 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Feb 18, 2020 | Feb 18, 2020 |
| Gentoo Linux | — | Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox.Upgrade mail-client/thunderbird. | Mar 13, 2020 | Mar 2, 2020 |
| Mfsa2020 05 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 73.0 | Feb 12, 2020 | Feb 11, 2020 |
| Mfsa2020 06 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 68.5 | Mar 11, 2020 | Mar 2, 2020 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 68.5 | Feb 12, 2020 | Feb 11, 2020 |
| Oracle Solaris | — | Upgrade web/data/firefox-bookmarks to version 68.5.0-11.4.19.0.1.2.0 on Solaris 11.4Upgrade web/browser/firefox to version 68.5.0-11.4.19.0.1.2.0 on Solaris 11.4Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 68.5.0-11.4.19.0.1.2.0 on Solaris 11.4Upgrade mail/thunderbird to version 68.5.0-11.4.19.0.1.2.0 on Solaris 11.4 | Jan 19, 2021 | Mar 2, 2020 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefox | Mar 2, 2020 | Feb 11, 2020 |
| Redhat_linux | — | Upgrade thunderbirdUpgrade firefoxNo solution existsUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbird-debugsourceUpgrade firefox-debugsource | Feb 18, 2020 | Feb 17, 2020 |
| Suse | — | Upgrade MozillaThunderbirdUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-translations-commonUpgrade MozillaThunderbird-translations-otherUpgrade mozillafirefox-buildsymbolsUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-common | Feb 18, 2020 | Feb 13, 2020 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Feb 14, 2020 | Feb 13, 2020 |
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