Vulnerability Description
By using the reflected URL in some special resource URIs, such as chrome:, it is possible to inject stylesheets and bypass Content Security Policy (CSP). This vulnerability affects Firefox < 63.
CVSS Score
6.5
MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 63.0 |
| Canonical | Ubuntu Linux | 14.04 |
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=1460538Issue TrackingPermissions RequiredVendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1488061Issue 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=1460538Issue TrackingPermissions RequiredVendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1488061Issue 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-2018-12398?
CVE-2018-12398 is a vulnerability with a CVSS score of 6.5 (MEDIUM). By using the reflected URL in some special resource URIs, such as chrome:, it is possible to inject stylesheets and bypass Content Security Policy (CSP). This vulnerability affects Firefox < 63.
How severe is CVE-2018-12398?
CVE-2018-12398 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-12398?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Canonical Ubuntu Linux.