Vulnerability Description
A combination of an external SVG image referenced on a page and the coloring of anchor links stored within this image can be used to determine which pages a user has in their history. This can allow a malicious website to query user history. Note: This issue only affects Firefox 57. Earlier releases are not affected. This vulnerability affects Firefox < 57.0.1.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 57.0.1 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/102039Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039954Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1420001Issue TrackingPermissions RequiredThird Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-27/Vendor Advisory
- http://www.securityfocus.com/bid/102039Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039954Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1420001Issue TrackingPermissions RequiredThird Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-27/Vendor Advisory
FAQ
What is CVE-2017-7844?
CVE-2017-7844 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A combination of an external SVG image referenced on a page and the coloring of anchor links stored within this image can be used to determine which pages a user has in their history. This can allow a...
How severe is CVE-2017-7844?
CVE-2017-7844 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-2017-7844?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.