A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade firefox-esr | Sep 20, 2017 | Mar 13, 2017 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jun 11, 2018 |
| Centos_linux | — | Upgrade firefox-debuginfoUpgrade firefoxUpgrade thunderbird-debuginfoUpgrade thunderbird | Mar 9, 2017 | Mar 7, 2017 |
| Debian | — | Upgrade firefox-esrUpgrade icedove | Mar 11, 2017 | Mar 7, 2017 |
| Freebsd | — | Upgrade linux-thunderbirdUpgrade firefox-esrUpgrade linux-seamonkeyUpgrade seamonkeyUpgrade libxulUpgrade firefoxUpgrade linux-firefoxUpgrade thunderbird | Mar 8, 2017 | Mar 7, 2017 |
| Gentoo Linux | — | Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird.Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox. | Oct 30, 2017 | May 9, 2017 |
| Mfsa2017 05 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 52.0 | Mar 8, 2017 | Mar 7, 2017 |
| Mfsa2017 06 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 45.8 | Mar 8, 2017 | Mar 7, 2017 |
| Mozilla Thunderbird | — | Upgrade to the latest version of Mozilla ThunderbirdUpgrade to Mozilla Thunderbird version 52.0 | Mar 8, 2017 | Mar 7, 2017 |
| Oracle Solaris | — | Upgrade web/data/firefox-bookmarks to version 45.8.0-0.175.3.19.0.2.0 on Solaris 11.3Upgrade web/browser/firefox/plugin/firefox-java to version 45.8.0-0.175.3.19.0.2.0 on Solaris 11.3Upgrade mail/thunderbird to version 45.8.0-0.175.3.20.0.3.0 on Solaris 11.3Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 45.8.0-0.175.3.20.0.2.0 on Solaris 11.3Upgrade web/browser/firefox to version 45.8.0-0.175.3.19.0.2.0 on Solaris 11.3 | May 29, 2017 | May 29, 2017 |
| Oracle_linux | — | Upgrade thunderbirdUpgrade firefox | Mar 9, 2017 | Mar 7, 2017 |
| Redhat_linux | — | Upgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade firefoxUpgrade thunderbird | Mar 11, 2017 | Mar 7, 2017 |
| Suse | — | Upgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-commonUpgrade MozillaThunderbirdUpgrade MozillaThunderbird-translations-commonUpgrade MozillaThunderbird-translations-otherUpgrade MozillaFirefoxUpgrade MozillaThunderbird-develUpgrade MozillaFirefox-translationsUpgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-buildsymbols | Mar 15, 2017 | Mar 7, 2017 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Mar 8, 2017 | Mar 7, 2017 |
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