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A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.3, and Firefox ESR < 91.3.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefoxUpgrade thunderbird | Aug 22, 2024 | Dec 8, 2021 |
| Centos_linux | — | Upgrade thunderbirdUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade thunderbird-debugsourceUpgrade firefoxUpgrade firefox-debugsource | Feb 28, 2022 | Dec 8, 2021 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Dec 30, 2021 | Dec 8, 2021 |
| Mfsa2021 43 | — | Upgrade to Mozilla Firefox version 93.0 | Dec 8, 2021 | Oct 5, 2021 |
| Mfsa2021 49 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 91.3 | Dec 8, 2021 | Nov 2, 2021 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 91.3Upgrade to the latest version of Mozilla Thunderbird | Dec 8, 2021 | Nov 3, 2021 |
| Redhat_linux | — | Upgrade thunderbird-debugsourceUpgrade firefox-debuginfoNo solution existsUpgrade thunderbird-debuginfoUpgrade firefox-debugsourceUpgrade thunderbirdUpgrade firefox | Feb 28, 2022 | Dec 8, 2021 |
| Rocky_linux | — | Upgrade thunderbird-debugsourceUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade firefox-debugsource | Mar 12, 2024 | Dec 8, 2021 |
| Ubuntu | — | Upgrade thunderbird | Jan 22, 2022 | Dec 8, 2021 |
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