Vulnerability Description
A shared worker created from a "data:" URL in one tab can be shared by another tab with a different origin, bypassing the same-origin policy. This vulnerability affects Firefox < 59.
CVSS Score
7.5
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Canonical | Ubuntu Linux | 14.04 |
| Mozilla | Firefox | < 59.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/103386Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040514Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1419166Issue TrackingPermissions Required
- https://usn.ubuntu.com/3596-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-06/Vendor Advisory
- http://www.securityfocus.com/bid/103386Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040514Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1419166Issue TrackingPermissions Required
- https://usn.ubuntu.com/3596-1/Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-06/Vendor Advisory
FAQ
What is CVE-2018-5136?
CVE-2018-5136 is a vulnerability with a CVSS score of 7.5 (HIGH). A shared worker created from a "data:" URL in one tab can be shared by another tab with a different origin, bypassing the same-origin policy. This vulnerability affects Firefox < 59.
How severe is CVE-2018-5136?
CVE-2018-5136 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-5136?
Check the references section above for vendor advisories and patch information. Affected products include: Canonical Ubuntu Linux, Mozilla Firefox.