A use-after-free vulnerability can occur in WebSockets when the object holding the connection is freed before the disconnection operation is finished. This results in an exploitable crash. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
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 |
|---|---|---|---|---|
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jun 11, 2018 |
| Centos_linux | — | Upgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade firefoxUpgrade firefox-debuginfo | Aug 16, 2017 | Aug 8, 2017 |
| Debian | — | Upgrade icedoveUpgrade firefox-esr | Aug 11, 2017 | Aug 8, 2017 |
| Freebsd | — | Upgrade firefoxUpgrade firefox-esrUpgrade seamonkeyUpgrade linux-firefoxUpgrade thunderbirdUpgrade linux-seamonkeyUpgrade libxulUpgrade linux-thunderbird | Aug 8, 2017 | Aug 8, 2017 |
| Gentoo Linux | — | Upgrade www-client/firefox.Upgrade mail-client/thunderbird.Upgrade www-client/firefox-bin.Upgrade mail-client/thunderbird-bin. | Feb 20, 2018 | Feb 20, 2018 |
| Mfsa2017 18 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 55.0 | Aug 9, 2017 | Aug 8, 2017 |
| Mfsa2017 19 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 52.3 | Aug 9, 2017 | Aug 8, 2017 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 52.3Upgrade to the latest version of Mozilla Thunderbird | Aug 21, 2017 | Aug 18, 2017 |
| Oracle Solaris | — | Upgrade mail/thunderbird to version 52.3.0-0.175.3.24.0.4.0 on Solaris 11.3Upgrade web/data/firefox-bookmarks to version 52.3.0-0.175.3.24.0.2.0 on Solaris 11.3Upgrade web/browser/firefox/plugin/firefox-java to version 52.3.0-0.175.3.24.0.2.0 on Solaris 11.3Upgrade mail/thunderbird/plugin/thunderbird-lightning to version 52.3.0-0.175.3.24.0.4.0 on Solaris 11.3Upgrade web/browser/firefox to version 52.3.0-0.175.3.24.0.2.0 on Solaris 11.3 | Sep 19, 2017 | Sep 19, 2017 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbird | Aug 11, 2017 | Aug 8, 2017 |
| Redhat_linux | — | Upgrade firefoxUpgrade thunderbird-debuginfoUpgrade thunderbirdUpgrade firefox-debuginfo | Aug 11, 2017 | Aug 8, 2017 |
| Suse | — | Upgrade MozillaFirefox-translationsUpgrade MozillaFirefoxUpgrade MozillaThunderbird-translations-commonUpgrade MozillaFirefox-translations-commonUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbirdUpgrade MozillaFirefox-develUpgrade MozillaThunderbird-develUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefox-branding-SLEDUpgrade MozillaThunderbird-buildsymbols | Aug 12, 2017 | Aug 8, 2017 |
| Ubuntu | — | Upgrade firefoxUpgrade thunderbird | Aug 16, 2017 | Aug 8, 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