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 | — | Upgrade firefoxUpgrade thunderbird | May 4, 2022 | Feb 26, 2021 |
| Alpine Linux | — | Upgrade librewolfUpgrade mozjs78Upgrade firefox-esrUpgrade firefoxUpgrade thunderbird | Aug 22, 2024 | Feb 26, 2021 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade thunderbird-debuginfo | Mar 22, 2021 | Feb 26, 2021 |
| Centos_linux | — | Upgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debugsourceUpgrade firefox-debugsource | Feb 25, 2021 | Feb 24, 2021 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Feb 26, 2021 | Feb 26, 2021 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird.Upgrade www-client/firefox.Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird-bin. | May 3, 2021 | Feb 26, 2021 |
| Mfsa2021 07 | — | Upgrade to Mozilla Firefox version 86.0 | Feb 24, 2021 | Feb 23, 2021 |
| Mfsa2021 08 | — | Upgrade to Mozilla Firefox ESR version 78.8 | Feb 24, 2021 | Feb 23, 2021 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 78.8 | Feb 24, 2021 | Feb 23, 2021 |
| Oracle Solaris | — | Upgrade web/browser/firefox to version 78.8.0-11.4.31.0.1.88.4 on Solaris 11.4Upgrade mail/thunderbird to version 78.8.0-11.4.31.0.1.88.4 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 78.8.0-11.4.31.0.1.88.4 on Solaris 11.4 | Mar 17, 2021 | Feb 26, 2021 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefox | Feb 26, 2021 | Feb 23, 2021 |
| Redhat_linux | — | Upgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade firefox-debugsourceNo solution existsUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefox | Feb 25, 2021 | Feb 24, 2021 |
| Suse | — | Upgrade mozillathunderbird-translations-commonUpgrade mozillafirefox-translations-otherUpgrade mozillafirefox-translations-commonUpgrade mozillafirefoxUpgrade mozillafirefox-develUpgrade mozillathunderbird-translations-otherUpgrade mozillafirefox-branding-upstreamUpgrade mozillathunderbirdUpgrade mozillafirefox-buildsymbols | Mar 2, 2021 | Feb 25, 2021 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Feb 27, 2021 | Feb 25, 2021 |
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