An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key handles and cross-origin key handles. This could have led to cross-origin account linking in violation of WebAuthn goals. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-esrUpgrade librewolf | Aug 22, 2024 | Dec 22, 2022 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade firefox-debuginfo | Sep 30, 2022 | Sep 30, 2022 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Dec 22, 2022 |
| Centos_linux | — | Upgrade firefox-debuginfoUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefoxUpgrade firefox-debugsourceUpgrade thunderbird | Jun 3, 2022 | Jun 1, 2022 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Jun 3, 2022 | Jun 3, 2022 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox.Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird. | Aug 11, 2022 | Aug 10, 2022 |
| Mfsa2022 20 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 101.0 | Jun 1, 2022 | May 31, 2022 |
| Mfsa2022 21 | — | Upgrade to Mozilla Firefox ESR version 91.10Upgrade to the latest version of Mozilla Firefox | Jun 1, 2022 | May 31, 2022 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 91.10 | Jun 1, 2022 | May 31, 2022 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefox | Jun 2, 2022 | May 31, 2022 |
| Redhat_linux | — | Upgrade firefox-debugsourceUpgrade thunderbird-debugsourceUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoNo solution existsUpgrade thunderbirdUpgrade firefox | Jun 3, 2022 | Jun 1, 2022 |
| Rocky_linux | — | Upgrade firefoxUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade firefox-debugsource | Jul 11, 2022 | Jul 7, 2022 |
| Suse | — | Upgrade mozillafirefox-branding-upstreamUpgrade MozillaThunderbird-translations-commonUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefox-translations-commonUpgrade MozillaThunderbirdUpgrade MozillaThunderbird-translations-otherUpgrade MozillaFirefox-devel | Oct 26, 2022 | Jun 2, 2022 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Jun 14, 2022 | Jun 2, 2022 |
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