Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-firefoxalma-upgrade-thunderbird | May 4, 2022 | Feb 26, 2021 | |
| Alpine Linux | alpine-linux-upgrade-firefox-esralpine-linux-upgrade-firefoxalpine-linux-upgrade-mozjs78alpine-linux-upgrade-thunderbirdalpine-linux-upgrade-librewolf | Aug 22, 2024 | Feb 26, 2021 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-thunderbirdamazon-linux-ami-2-upgrade-thunderbird-debuginfo | Mar 22, 2021 | Feb 26, 2021 | |
| Centos_linux | — | centos-upgrade-firefoxcentos-upgrade-firefox-debuginfocentos-upgrade-firefox-debugsourcecentos-upgrade-thunderbirdcentos-upgrade-thunderbird-debuginfocentos-upgrade-thunderbird-debugsource | Feb 25, 2021 | Feb 24, 2021 |
| Debian | debian-upgrade-firefox-esrdebian-upgrade-thunderbird | Feb 26, 2021 | Feb 26, 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 | May 3, 2021 | Feb 26, 2021 | |
| Mfsa2021 07 | mozilla-firefox-upgrade-86_0 | Feb 24, 2021 | Feb 23, 2021 | |
| Mfsa2021 08 | mozilla-firefox-esr-upgrade-78_8 | Feb 24, 2021 | Feb 23, 2021 | |
| Mozilla Thunderbird | mozilla-thunderbird-upgrade-78_8 | Feb 24, 2021 | Feb 23, 2021 | |
| Oracle Solaris | oracle-solaris-11-4-upgrade-mail-thunderbird-78-8-0-11-4-31-0-1-88-4oracle-solaris-11-4-upgrade-web-browser-firefox-78-8-0-11-4-31-0-1-88-4oracle-solaris-11-4-upgrade-web-data-firefox-bookmarks-78-8-0-11-4-31-0-1-88-4 | Mar 17, 2021 | Feb 26, 2021 | |
| Oracle_linux | — | oracle-linux-upgrade-firefoxoracle-linux-upgrade-thunderbird | Feb 26, 2021 | Feb 23, 2021 |
| Redhat_linux | no-fix-redhat-rpm-packageredhat-upgrade-firefoxredhat-upgrade-firefox-debuginforedhat-upgrade-firefox-debugsourceredhat-upgrade-thunderbirdredhat-upgrade-thunderbird-debuginforedhat-upgrade-thunderbird-debugsource | Feb 25, 2021 | Feb 24, 2021 | |
| Suse | — | suse-upgrade-mozillafirefoxsuse-upgrade-mozillafirefox-branding-upstreamsuse-upgrade-mozillafirefox-buildsymbolssuse-upgrade-mozillafirefox-develsuse-upgrade-mozillafirefox-translations-commonsuse-upgrade-mozillafirefox-translations-othersuse-upgrade-mozillathunderbirdsuse-upgrade-mozillathunderbird-translations-commonsuse-upgrade-mozillathunderbird-translations-other | Mar 2, 2021 | Feb 25, 2021 |
| Ubuntu | ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird | Feb 27, 2021 | Feb 25, 2021 |
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