Vulnerability Description
If an existing cookie is changed to be "HttpOnly" while a document is open, the original value remains accessible through script until that document is closed. Network requests correctly use the changed HttpOnly cookie. This vulnerability affects Firefox < 58.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | <= 57.0.4 |
| Canonical | Ubuntu Linux | 14.04 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/102786Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040270Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1421324Issue TrackingPermissions Required
- https://usn.ubuntu.com/3544-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-02/Vendor Advisory
- http://www.securityfocus.com/bid/102786Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040270Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1421324Issue TrackingPermissions Required
- https://usn.ubuntu.com/3544-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-02/Vendor Advisory
FAQ
What is CVE-2018-5114?
CVE-2018-5114 is a vulnerability with a CVSS score of 5.3 (MEDIUM). If an existing cookie is changed to be "HttpOnly" while a document is open, the original value remains accessible through script until that document is closed. Network requests correctly use the chang...
How severe is CVE-2018-5114?
CVE-2018-5114 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-5114?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Canonical Ubuntu Linux.