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The `ShutdownObserver()` was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-x11 | Jan 5, 2024 | Dec 19, 2023 |
| Alpine Linux | — | Upgrade firefox-esrUpgrade thunderbirdUpgrade firefox | Aug 22, 2024 | Dec 19, 2023 |
| Amazon Linux Ami 2 | — | Upgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade firefox | Jan 10, 2024 | Dec 19, 2023 |
| Centos_linux | — | Upgrade thunderbirdUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefox | Jan 3, 2024 | Dec 19, 2023 |
| Debian | — | Upgrade firefox-esr | Dec 27, 2023 | Dec 19, 2023 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox-bin.Upgrade www-client/firefox.Upgrade mail-client/thunderbird. | Jan 8, 2024 | Dec 19, 2023 |
| Mfsa2023 54 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 115.6 | Dec 20, 2023 | Dec 19, 2023 |
| Mfsa2023 56 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 121.0 | Dec 20, 2023 | Dec 19, 2023 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 115.6 | Dec 20, 2023 | Dec 19, 2023 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-x11 | Jan 3, 2024 | Dec 19, 2023 |
| Redhat_linux | — | No solution existsUpgrade thunderbirdUpgrade thunderbird-debuginfoUpgrade firefoxUpgrade firefox-x11Upgrade firefox-debuginfoUpgrade thunderbird-debugsourceUpgrade firefox-debugsource | Jan 3, 2024 | Dec 19, 2023 |
| Rocky_linux | — | — | Aug 15, 2024 | Dec 19, 2023 |
| Suse | — | Upgrade MozillaThunderbirdUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-commonUpgrade MozillaThunderbird-translations-otherUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefoxUpgrade mozillafirefox-branding-upstreamUpgrade MozillaThunderbird-translations-common | Dec 20, 2023 | Dec 19, 2023 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Jan 3, 2024 | Dec 19, 2023 |
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