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 | arch-linux-upgrade-latest | Jul 11, 2025 | Jun 11, 2018 | |
| Centos_linux | — | centos-upgrade-firefoxcentos-upgrade-firefox-debuginfocentos-upgrade-thunderbirdcentos-upgrade-thunderbird-debuginfo | Aug 16, 2017 | Aug 8, 2017 |
| Debian | debian-upgrade-firefox-esrdebian-upgrade-icedove | Aug 11, 2017 | Aug 8, 2017 | |
| Freebsd | freebsd-upgrade-package-firefoxfreebsd-upgrade-package-seamonkeyfreebsd-upgrade-package-linux-seamonkeyfreebsd-upgrade-package-firefox-esrfreebsd-upgrade-package-linux-firefoxfreebsd-upgrade-package-libxulfreebsd-upgrade-package-thunderbirdfreebsd-upgrade-package-linux-thunderbird | Aug 8, 2017 | Aug 8, 2017 | |
| Gentoo Linux | gentoo-linux-upgrade-mail-client-thunderbirdgentoo-linux-upgrade-mail-client-thunderbird-bingentoo-linux-upgrade-www-client-firefoxgentoo-linux-upgrade-www-client-firefox-bin | Feb 20, 2018 | Feb 20, 2018 | |
| Mfsa2017 18 | mozilla-firefox-upgrade-55_0 | Aug 9, 2017 | Aug 8, 2017 | |
| Mfsa2017 19 | mozilla-firefox-esr-upgrade-52_3 | Aug 9, 2017 | Aug 8, 2017 | |
| Mozilla Thunderbird | mozilla-thunderbird-upgrade-52_3 | Aug 21, 2017 | Aug 18, 2017 | |
| Oracle Solaris | oracle-solaris-11-3-upgrade-mail-thunderbird-52-3-0-0-175-3-24-0-4-0oracle-solaris-11-3-upgrade-mail-thunderbird-plugin-thunderbird-lightning-52-3-0-0-175-3-24-0-4-0oracle-solaris-11-3-upgrade-web-browser-firefox-52-3-0-0-175-3-24-0-2-0oracle-solaris-11-3-upgrade-web-browser-firefox-plugin-firefox-java-52-3-0-0-175-3-24-0-2-0oracle-solaris-11-3-upgrade-web-data-firefox-bookmarks-52-3-0-0-175-3-24-0-2-0 | Sep 19, 2017 | Sep 19, 2017 | |
| Oracle_linux | — | oracle-linux-upgrade-firefoxoracle-linux-upgrade-thunderbird | Aug 11, 2017 | Aug 8, 2017 |
| Redhat_linux | — | redhat-upgrade-firefoxredhat-upgrade-firefox-debuginforedhat-upgrade-thunderbirdredhat-upgrade-thunderbird-debuginfo | Aug 11, 2017 | Aug 8, 2017 |
| Suse | — | suse-upgrade-mozillafirefoxsuse-upgrade-mozillafirefox-branding-sledsuse-upgrade-mozillafirefox-develsuse-upgrade-mozillafirefox-translationssuse-upgrade-mozillafirefox-translations-commonsuse-upgrade-mozillafirefox-translations-othersuse-upgrade-mozillathunderbirdsuse-upgrade-mozillathunderbird-buildsymbolssuse-upgrade-mozillathunderbird-develsuse-upgrade-mozillathunderbird-translations-commonsuse-upgrade-mozillathunderbird-translations-other | Aug 12, 2017 | Aug 8, 2017 |
| Ubuntu | ubuntu-upgrade-firefoxubuntu-upgrade-thunderbird | Aug 16, 2017 | Aug 8, 2017 |
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