Vulnerability Description
When a new protocol handler is registered, the API accepts a title argument which can be used to mislead users about which domain is registering the new protocol. This may result in the user approving a protocol handler that they otherwise would not have. This vulnerability affects Firefox < 63.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 63.0 |
| Canonical | Ubuntu Linux | 14.04 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/105721Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041944Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1490276Issue TrackingPermissions RequiredVendor Advisory
- https://usn.ubuntu.com/3801-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-26/Vendor Advisory
- http://www.securityfocus.com/bid/105721Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041944Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1490276Issue TrackingPermissions RequiredVendor Advisory
- https://usn.ubuntu.com/3801-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-26/Vendor Advisory
FAQ
What is CVE-2018-12399?
CVE-2018-12399 is a vulnerability with a CVSS score of 4.3 (MEDIUM). When a new protocol handler is registered, the API accepts a title argument which can be used to mislead users about which domain is registering the new protocol. This may result in the user approving...
How severe is CVE-2018-12399?
CVE-2018-12399 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-12399?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Canonical Ubuntu Linux.