By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
CVSS Details
- CVSS 3.1 Base Score: 4.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-firefoxalma-upgrade-thunderbird | May 4, 2022 | Dec 8, 2021 | |
| Alpine Linux | alpine-linux-upgrade-firefox-esralpine-linux-upgrade-firefoxalpine-linux-upgrade-thunderbirdalpine-linux-upgrade-librewolf | Aug 22, 2024 | Dec 8, 2021 | |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Dec 8, 2021 | |
| Centos_linux | — | centos-upgrade-firefoxcentos-upgrade-firefox-debuginfocentos-upgrade-firefox-debugsourcecentos-upgrade-thunderbirdcentos-upgrade-thunderbird-debuginfocentos-upgrade-thunderbird-debugsource | Dec 9, 2021 | Dec 8, 2021 |
| Debian | debian-upgrade-firefox-esrdebian-upgrade-thunderbird | Dec 30, 2021 | Dec 8, 2021 | |
| Gentoo Linux | gentoo-linux-upgrade-mail-client-thunderbirdgentoo-linux-upgrade-mail-client-thunderbird-bingentoo-linux-upgrade-www-client-firefoxgentoo-linux-upgrade-www-client-firefox-bin | Feb 22, 2022 | Dec 8, 2021 | |
| Mfsa2021 52 | mozilla-firefox-upgrade-95_0 | Dec 8, 2021 | Dec 7, 2021 | |
| Mfsa2021 53 | mozilla-firefox-esr-upgrade-91_4 | Dec 8, 2021 | Dec 7, 2021 | |
| Mozilla Thunderbird | mozilla-thunderbird-upgrade-91_4 | Dec 8, 2021 | Dec 7, 2021 | |
| Oracle Solaris | oracle-solaris-11-4-upgrade-mail-thunderbird-91-4-0-11-4-41-0-1-107-2oracle-solaris-11-4-upgrade-web-browser-firefox-91-4-0-11-4-41-0-1-107-2oracle-solaris-11-4-upgrade-web-data-firefox-bookmarks-91-4-0-11-4-41-0-1-107-2 | Jan 19, 2022 | Dec 8, 2021 | |
| Oracle_linux | — | oracle-linux-upgrade-firefoxoracle-linux-upgrade-thunderbird | Dec 9, 2021 | Dec 7, 2021 |
| Redhat_linux | no-fix-redhat-rpm-packageredhat-upgrade-firefoxredhat-upgrade-firefox-debuginforedhat-upgrade-firefox-debugsourceredhat-upgrade-thunderbirdredhat-upgrade-thunderbird-debuginforedhat-upgrade-thunderbird-debugsource | Dec 9, 2021 | Dec 8, 2021 | |
| Rocky_linux | rocky-upgrade-firefoxrocky-upgrade-firefox-debuginforocky-upgrade-firefox-debugsourcerocky-upgrade-thunderbirdrocky-upgrade-thunderbird-debuginforocky-upgrade-thunderbird-debugsource | Mar 12, 2024 | Dec 8, 2021 | |
| Suse | — | suse-upgrade-mozillafirefoxsuse-upgrade-mozillafirefox-branding-upstreamsuse-upgrade-mozillafirefox-develsuse-upgrade-mozillafirefox-translations-commonsuse-upgrade-mozillafirefox-translations-othersuse-upgrade-mozillathunderbirdsuse-upgrade-mozillathunderbird-translations-commonsuse-upgrade-mozillathunderbird-translations-other | Dec 11, 2021 | Dec 8, 2021 |
| Ubuntu | ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird | Dec 10, 2021 | Dec 8, 2021 |
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