A mechanism was discovered that removes some bounds checking for string, array, or typed array accesses if Spectre mitigations have been disabled. This vulnerability could allow an attacker to create an arbitrary value in compiled JavaScript, for which the range analysis will infer a fully controlled, incorrect range in circumstances where users have explicitly disabled Spectre mitigations. *Note: Spectre mitigations are currently enabled for all users by default settings.*. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.
CVSS Details
- CVSS 3.1 Base Score: 5.9
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esr | Aug 22, 2024 | Apr 26, 2019 |
| Amazon Linux Ami 2 | — | Upgrade thunderbird-debuginfoUpgrade thunderbird | Apr 27, 2020 | Apr 26, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Apr 26, 2019 |
| Centos_linux | — | Upgrade thunderbird-debuginfoUpgrade firefoxUpgrade firefox-debuginfoUpgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade firefox-debugsource | Apr 1, 2019 | Mar 19, 2019 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Mar 21, 2019 | Mar 21, 2019 |
| Freebsd | — | Upgrade seamonkeyUpgrade libxulUpgrade linux-firefoxUpgrade waterfoxUpgrade linux-seamonkeyUpgrade linux-thunderbirdUpgrade firefox-esrUpgrade firefoxUpgrade thunderbird | Mar 20, 2019 | Mar 19, 2019 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird.Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox-bin.Upgrade www-client/firefox. | Apr 3, 2019 | Apr 2, 2019 |
| Huawei Euleros 2_0_sp2 | — | Upgrade firefox | May 1, 2019 | Apr 26, 2019 |
| Huawei Euleros 2_0_sp3 | — | Upgrade firefox | May 30, 2019 | Apr 26, 2019 |
| Huawei Euleros 2_0_sp9 | — | Upgrade mozjs60 | Feb 12, 2024 | Apr 26, 2019 |
| Mfsa2019 07 | — | Upgrade to Mozilla Firefox version 66.0Upgrade to the latest version of Mozilla Firefox | Mar 20, 2019 | Mar 19, 2019 |
| Mfsa2019 08 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 60.6 | Mar 20, 2019 | Mar 19, 2019 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 60.6 | Mar 26, 2019 | Mar 19, 2019 |
| Oracle Solaris | — | Upgrade web/browser/firefox to version 60.6.0-11.4.8.0.1.3.0 on Solaris 11.4Upgrade web/data/firefox-bookmarks to version 60.6.0-11.4.8.0.1.3.0 on Solaris 11.4Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 60.6.1-11.4.9.0.1.2.0 on Solaris 11.4Upgrade mail/thunderbird to version 60.6.1-11.4.9.0.1.2.0 on Solaris 11.4 | Apr 17, 2019 | Apr 17, 2019 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | Apr 1, 2019 | Mar 20, 2019 |
| Redhat_linux | — | Upgrade thunderbird-debuginfoUpgrade thunderbird-debugsourceUpgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade thunderbirdUpgrade firefox | Mar 21, 2019 | Mar 20, 2019 |
| Suse | — | Upgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-commonUpgrade mozillafirefox-buildsymbolsUpgrade mozillafirefox-branding-upstreamUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbird-buildsymbolsUpgrade MozillaThunderbirdUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-translations-common | Apr 1, 2019 | Mar 19, 2019 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Apr 1, 2019 | Mar 19, 2019 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub