Bug 1479228 (CVE-2017-7808)

Summary: CVE-2017-7808 Mozilla: CSP information leak with frame-ancestors containing paths (MFSA 2017-18)
Product: [Other] Security Response Reporter: Doran Moppert <dmoppert>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: jhorak, security-response-team, stransky
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Last Closed: 2017-08-09 01:15:26 UTC Type: ---
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Bug Blocks: 1477026    

Description Doran Moppert 2017-08-08 06:56:32 UTC 
A content security policy (CSP) with a directive containing origins with paths in frame-ancestors allows for comparisons against those paths instead of the origin. This results in a cross-origin information leak of this path information.


External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-18/#CVE-2017-7808


Acknowledgements:

Name: the Mozilla project
Upstream: Jun Kokatsu