Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. 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 Firefox ESR < 78.14, Thunderbird < 78.14, and Firefox < 92.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefox | May 4, 2022 | Nov 3, 2021 |
| Alpine Linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade mozjs78Upgrade librewolfUpgrade firefox-esr | Aug 22, 2024 | Nov 3, 2021 |
| Amazon Linux Ami 2 | — | Upgrade thunderbird-debuginfoUpgrade thunderbird | Nov 5, 2021 | Nov 5, 2021 |
| Centos_linux | — | Upgrade firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade firefox | Sep 14, 2021 | Sep 13, 2021 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Sep 13, 2021 | Sep 13, 2021 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird.Upgrade www-client/firefox.Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird-bin. | Feb 22, 2022 | Nov 3, 2021 |
| Mfsa2021 38 | — | Upgrade to Mozilla Firefox version 92.0Upgrade to the latest version of Mozilla Firefox | Sep 8, 2021 | Sep 7, 2021 |
| Mfsa2021 39 | — | Upgrade to Mozilla Firefox ESR version 78.14Upgrade to the latest version of Mozilla Firefox | Sep 8, 2021 | Sep 7, 2021 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 78.14Upgrade to the latest version of Mozilla Thunderbird | Sep 8, 2021 | Sep 7, 2021 |
| Oracle Solaris | — | Upgrade web/browser/firefox to version 78.14.0-11.4.38.0.1.101.3 on Solaris 11.4Upgrade mail/thunderbird to version 78.14.0-11.4.38.0.1.101.3 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 78.14.0-11.4.38.0.1.101.3 on Solaris 11.4 | Nov 17, 2021 | Nov 17, 2021 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefox | Sep 14, 2021 | Sep 7, 2021 |
| Redhat_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debugsourceUpgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade thunderbird-debuginfoNo solution exists | Sep 14, 2021 | Sep 13, 2021 |
| Rocky_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-debuginfoUpgrade thunderbird-debugsourceUpgrade firefox-debugsourceUpgrade thunderbird-debuginfo | May 5, 2022 | Nov 3, 2021 |
| Suse | — | Upgrade MozillaThunderbirdUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbird-translations-common | Dec 23, 2021 | Sep 9, 2021 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Sep 10, 2021 | Sep 9, 2021 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub