If a long user name is used in a username/password combination in a site URL (such as " http://UserName:[email protected]"), the resulting modal prompt will hang in a non-responsive state or crash, causing a denial of service. This vulnerability affects Firefox < 55.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Jun 11, 2018 | |
| 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 | |
| Mfsa2017 18 | mozilla-firefox-upgrade-55_0 | Aug 9, 2017 | Aug 8, 2017 | |
| Oracle Solaris | oracle-solaris-11-3-upgrade-web-browser-firefox-52-4-0-0-175-3-25-0-3-0oracle-solaris-11-3-upgrade-web-browser-firefox-plugin-firefox-java-52-4-0-0-175-3-25-0-3-0oracle-solaris-11-3-upgrade-web-data-firefox-bookmarks-52-4-0-0-175-3-25-0-3-0 | Aug 24, 2018 | Jun 11, 2018 | |
| Suse | — | suse-upgrade-mozillafirefoxsuse-upgrade-mozillafirefox-translations-commonsuse-upgrade-mozillafirefox-translations-other | May 19, 2018 | Aug 8, 2017 |
| Ubuntu | ubuntu-upgrade-firefox | Aug 16, 2017 | Aug 8, 2017 |
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