Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. 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 ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.
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 | Mar 31, 2021 |
| Alpine Linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade mozjs78Upgrade librewolfUpgrade firefox-esr | Jun 17, 2022 | Mar 31, 2021 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade thunderbird-debuginfo | Apr 23, 2021 | Mar 31, 2021 |
| Centos_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade thunderbird-debugsource | Mar 26, 2021 | Mar 25, 2021 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Mar 26, 2021 | Mar 26, 2021 |
| Gentoo Linux | — | Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird.Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox. | May 3, 2021 | Mar 31, 2021 |
| Mfsa2021 10 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 87.0 | Mar 24, 2021 | Mar 23, 2021 |
| Mfsa2021 11 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 78.9 | Mar 24, 2021 | Mar 23, 2021 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 78.9Upgrade to the latest version of Mozilla Thunderbird | Mar 24, 2021 | Mar 23, 2021 |
| Oracle Solaris | — | Upgrade mail/thunderbird to version 78.9.0-11.4.32.0.1.88.3 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 78.9.0-11.4.32.0.1.88.3 on Solaris 11.4Upgrade web/browser/firefox to version 78.9.0-11.4.32.0.1.88.3 on Solaris 11.4 | Apr 21, 2021 | Mar 31, 2021 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | Mar 26, 2021 | Mar 23, 2021 |
| Redhat_linux | — | Upgrade firefoxUpgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade thunderbird-debugsourceNo solution existsUpgrade firefox-debuginfoUpgrade firefox-debugsource | Mar 26, 2021 | Mar 25, 2021 |
| Suse | — | Upgrade mozilla-nspr-32bitUpgrade mozilla-nsprUpgrade mozilla-nspr-develUpgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-translations-otherUpgrade mozillafirefox-buildsymbolsUpgrade MozillaThunderbirdUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefox-develUpgrade mozillafirefox-branding-upstreamUpgrade mozillafirefox-branding-sleUpgrade MozillaFirefoxUpgrade MozillaThunderbird-translations-common | Mar 31, 2021 | Mar 25, 2021 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Mar 26, 2021 | Mar 25, 2021 |
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