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Mozilla developers and community members reported memory safety bugs present in Firefox 66, Firefox ESR 60.6, and Thunderbird 60.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esr | Nov 8, 2019 | Jul 23, 2019 |
| Amazon Linux Ami 2 | — | Upgrade thunderbirdUpgrade thunderbird-debuginfo | Apr 27, 2020 | Jul 23, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jul 23, 2019 |
| Centos_linux | — | Upgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debugsource | May 31, 2019 | May 21, 2019 |
| Debian | — | Upgrade firefox-esrUpgrade thunderbird | May 23, 2019 | May 23, 2019 |
| Freebsd | — | Upgrade firefox-esrUpgrade linux-thunderbirdUpgrade linux-seamonkeyUpgrade waterfoxUpgrade firefoxUpgrade linux-firefoxUpgrade libxulUpgrade thunderbirdUpgrade seamonkey | May 23, 2019 | May 22, 2019 |
| Mfsa2019 13 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 67.0 | May 22, 2019 | May 21, 2019 |
| Mfsa2019 14 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 60.7 | May 22, 2019 | May 21, 2019 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 60.7Upgrade to the latest version of Mozilla Thunderbird | May 23, 2019 | May 21, 2019 |
| Oracle Solaris | — | Upgrade web/data/firefox-bookmarks to version 60.7.0-11.4.10.0.1.2.0 on Solaris 11.4Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 60.7.0-11.4.10.0.1.2.0 on Solaris 11.4Upgrade mail/thunderbird to version 60.7.0-11.4.10.0.1.2.0 on Solaris 11.4Upgrade web/browser/firefox to version 60.7.0-11.4.10.0.1.2.0 on Solaris 11.4 | Jun 26, 2019 | Jun 26, 2019 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | May 24, 2019 | May 22, 2019 |
| Redhat_linux | — | Upgrade firefox-debuginfoUpgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade thunderbird-debugsourceUpgrade firefox-debugsource | May 24, 2019 | May 23, 2019 |
| Suse | — | Upgrade MozillaThunderbird-translations-otherUpgrade MozillaFirefox-translations-commonUpgrade MozillaThunderbirdUpgrade MozillaFirefox-develUpgrade MozillaThunderbird-buildsymbolsUpgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-translations-commonUpgrade mozillafirefox-buildsymbolsUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox | May 31, 2019 | May 21, 2019 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | May 22, 2019 | May 21, 2019 |
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