Firefox behaved slightly differently for already known resources when loading CSS resources involving CSS variables. This could have been used to probe the browser history. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-firefoxalma-upgrade-thunderbird | May 6, 2022 | May 4, 2022 | |
| Alpine Linux | alpine-linux-upgrade-firefox-esralpine-linux-upgrade-firefoxalpine-linux-upgrade-thunderbirdalpine-linux-upgrade-librewolf | Aug 22, 2024 | Dec 22, 2022 | |
| Centos_linux | — | centos-upgrade-firefoxcentos-upgrade-firefox-debuginfocentos-upgrade-firefox-debugsourcecentos-upgrade-thunderbirdcentos-upgrade-thunderbird-debuginfocentos-upgrade-thunderbird-debugsource | May 5, 2022 | May 4, 2022 |
| Debian | debian-upgrade-firefox-esrdebian-upgrade-thunderbird | May 6, 2022 | May 6, 2022 | |
| 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 | Aug 11, 2022 | Aug 10, 2022 | |
| Mfsa2022 16 | mozilla-firefox-upgrade-100_0 | May 4, 2022 | May 3, 2022 | |
| Mfsa2022 17 | mozilla-firefox-esr-upgrade-91_9 | May 4, 2022 | May 3, 2022 | |
| Mozilla Thunderbird | mozilla-thunderbird-upgrade-91_9 | May 6, 2022 | May 3, 2022 | |
| Oracle_linux | — | oracle-linux-upgrade-firefoxoracle-linux-upgrade-thunderbird | May 5, 2022 | May 3, 2022 |
| Redhat_linux | redhat-upgrade-firefoxredhat-upgrade-firefox-debuginforedhat-upgrade-firefox-debugsourceredhat-upgrade-thunderbirdredhat-upgrade-thunderbird-debuginforedhat-upgrade-thunderbird-debugsource | May 5, 2022 | May 4, 2022 | |
| Rocky_linux | rocky-upgrade-firefoxrocky-upgrade-firefox-debuginforocky-upgrade-firefox-debugsourcerocky-upgrade-thunderbirdrocky-upgrade-thunderbird-debuginforocky-upgrade-thunderbird-debugsource | Mar 5, 2024 | Dec 22, 2022 | |
| 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 | Oct 26, 2022 | May 17, 2022 |
| Ubuntu | ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird | May 12, 2022 | May 4, 2022 |
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