Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. 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 < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
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 |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade thunderbirdUpgrade firefox-esrUpgrade librewolfUpgrade firefox | Aug 22, 2024 | Oct 1, 2020 |
| Amazon Linux Ami 2 | — | Upgrade thunderbird-debuginfoUpgrade thunderbird | Dec 10, 2020 | Oct 1, 2020 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Oct 1, 2020 |
| Centos_linux | — | Upgrade thunderbird-debugsourceUpgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debuginfo | Sep 25, 2020 | Sep 24, 2020 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Sep 30, 2020 | Sep 30, 2020 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird.Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox.Upgrade www-client/firefox-bin. | Oct 19, 2020 | Oct 1, 2020 |
| Mfsa2020 42 | — | Upgrade to Mozilla Firefox version 81.0Upgrade to the latest version of Mozilla Firefox | Sep 23, 2020 | Sep 22, 2020 |
| Mfsa2020 43 | — | Upgrade to Mozilla Firefox ESR version 78.3Upgrade to the latest version of Mozilla Firefox | Sep 23, 2020 | Sep 22, 2020 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 78.3Upgrade to the latest version of Mozilla Thunderbird | Sep 25, 2020 | Sep 22, 2020 |
| Oracle Solaris | — | Upgrade web/data/firefox-bookmarks to version 78.3.0-11.4.27.0.1.82.0 on Solaris 11.4Upgrade mail/thunderbird to version 78.3.0-11.4.27.0.1.82.0 on Solaris 11.4Upgrade web/browser/firefox to version 78.3.0-11.4.27.0.1.82.0 on Solaris 11.4 | Jan 19, 2021 | Oct 1, 2020 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | Sep 25, 2020 | Sep 22, 2020 |
| Redhat_linux | — | Upgrade firefoxUpgrade thunderbird-debugsourceUpgrade thunderbirdUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefox-debugsourceNo solution exists | Sep 25, 2020 | Sep 24, 2020 |
| Suse | — | Upgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-otherUpgrade mozillafirefox-branding-upstreamUpgrade MozillaThunderbird-translations-commonUpgrade mozillafirefox-buildsymbolsUpgrade MozillaThunderbird-translations-otherUpgrade mozilla-nsprUpgrade MozillaThunderbirdUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-commonUpgrade mozilla-nspr-32bitUpgrade mozilla-nspr-devel | Sep 29, 2020 | Sep 24, 2020 |
| Ubuntu | — | Upgrade firefox | Sep 29, 2020 | Sep 24, 2020 |
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