Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. 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 Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.
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 thunderbirdUpgrade firefox | May 4, 2022 | Aug 5, 2021 |
| Alpine Linux | — | Upgrade firefox-esrUpgrade librewolfUpgrade mozjs78Upgrade thunderbirdUpgrade firefox | Aug 22, 2024 | Aug 5, 2021 |
| Amazon Linux Ami 2 | — | Upgrade thunderbird-debuginfoUpgrade thunderbird | Sep 16, 2021 | Aug 5, 2021 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Aug 5, 2021 |
| Centos_linux | — | Upgrade thunderbird-debugsourceUpgrade thunderbirdUpgrade firefoxUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefox-debugsource | Jul 16, 2021 | Jul 15, 2021 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Jul 16, 2021 | Jul 16, 2021 |
| Gentoo Linux | — | Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird.Upgrade www-client/firefox.Upgrade mail-client/thunderbird-bin. | Feb 22, 2022 | Aug 5, 2021 |
| Mfsa2021 28 | — | Upgrade to Mozilla Firefox version 90.0Upgrade to the latest version of Mozilla Firefox | Jul 14, 2021 | Jul 13, 2021 |
| Mfsa2021 29 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 78.12 | Jul 14, 2021 | Jul 13, 2021 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 78.12 | Jul 14, 2021 | Jul 13, 2021 |
| Oracle Solaris | — | Upgrade mail/thunderbird to version 78.14.0-11.4.38.0.1.101.3 on Solaris 11.4Upgrade web/browser/firefox to version 78.14.0-11.4.38.0.1.101.3 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 78.14.0-11.4.38.0.1.101.3 on Solaris 11.4 | Nov 17, 2021 | Aug 5, 2021 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefox | Jul 16, 2021 | Jul 13, 2021 |
| Redhat_linux | — | Upgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoNo solution existsUpgrade thunderbird-debugsourceUpgrade thunderbirdUpgrade firefox | Jul 16, 2021 | Jul 15, 2021 |
| Rocky_linux | — | Upgrade thunderbird-debuginfoUpgrade firefoxUpgrade firefox-debuginfoUpgrade thunderbird-debugsourceUpgrade thunderbirdUpgrade firefox-debugsource | Mar 12, 2024 | Aug 5, 2021 |
| Suse | — | Upgrade MozillaFirefox-translations-otherUpgrade MozillaFirefoxUpgrade MozillaThunderbirdUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbird-translations-commonUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-commonUpgrade mozillafirefox-buildsymbols | Jul 17, 2021 | Jul 16, 2021 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Jul 17, 2021 | Jul 16, 2021 |
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