CVE-2017-7808

Description

A content security policy (CSP) "frame-ancestors" directive containing origins with paths allows for comparisons against those paths instead of the origin. This results in a cross-origin information leak of this path information. This vulnerability affects Firefox < 55.

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.14%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1367531 patch vendor advisory issue tracking
http://www.securityfocus.com/bid/100373 third party advisory vdb entry
https://www.mozilla.org/security/advisories/mfsa2017-18/ vendor advisory
http://www.securitytracker.com/id/1039124 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2017-7808?
CVE-2017-7808 has been scored as a medium severity vulnerability.
How to fix CVE-2017-7808?
To fix CVE-2017-7808, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7808 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-7808 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7808?
CVE-2017-7808 affects Mozilla Firefox.
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