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 | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jun 11, 2018 |
| Freebsd | — | Upgrade firefoxUpgrade seamonkeyUpgrade linux-seamonkeyUpgrade linux-firefoxUpgrade libxulUpgrade thunderbirdUpgrade linux-thunderbirdUpgrade firefox-esr | Aug 8, 2017 | Aug 8, 2017 |
| Mfsa2017 18 | — | Upgrade to Mozilla Firefox version 55.0 | Aug 9, 2017 | Aug 8, 2017 |
| Oracle Solaris | — | Upgrade web/browser/firefox/plugin/firefox-java to version 52.4.0-0.175.3.25.0.3.0 on Solaris 11.3Upgrade web/browser/firefox to version 52.4.0-0.175.3.25.0.3.0 on Solaris 11.3Upgrade web/data/firefox-bookmarks to version 52.4.0-0.175.3.25.0.3.0 on Solaris 11.3 | Aug 24, 2018 | Jun 11, 2018 |
| Suse | — | Upgrade mozillafirefox-translations-otherUpgrade mozillafirefox-translations-commonUpgrade mozillafirefox | May 19, 2018 | Aug 8, 2017 |
| Ubuntu | — | Upgrade firefox | Aug 16, 2017 | Aug 8, 2017 |
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