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 firefoxUpgrade firefox-esrUpgrade thunderbirdUpgrade librewolf | Aug 22, 2024 | Oct 1, 2020 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade thunderbird-debuginfo | 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 thunderbirdUpgrade firefox-debugsourceUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbird-debugsource | Sep 25, 2020 | Sep 24, 2020 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | Sep 30, 2020 | Sep 30, 2020 |
| Gentoo Linux | — | Upgrade www-client/firefox.Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird. | 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 the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 78.3 | 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 thunderbirdUpgrade firefox | Sep 25, 2020 | Sep 22, 2020 |
| Redhat_linux | — | Upgrade thunderbird-debugsourceUpgrade thunderbirdUpgrade firefoxUpgrade firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoNo solution exists | Sep 25, 2020 | Sep 24, 2020 |
| Suse | — | Upgrade mozilla-nspr-develUpgrade mozilla-nsprUpgrade MozillaFirefoxUpgrade MozillaThunderbirdUpgrade MozillaFirefox-translations-commonUpgrade mozilla-nspr-32bitUpgrade MozillaThunderbird-translations-commonUpgrade mozillafirefox-buildsymbolsUpgrade MozillaThunderbird-translations-otherUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-other | Sep 29, 2020 | Sep 24, 2020 |
| Ubuntu | — | Upgrade firefox | Sep 29, 2020 | Sep 24, 2020 |
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