Bug 1220609 (CVE-2015-2718)

Summary: CVE-2015-2718 Mozilla: Untrusted site hosting trusted page can intercept webchannel responses (MFSA 2015-56)
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: security-response-team
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2015-05-12 18:30:00 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Blocks: 1209788    

Description Huzaifa S. Sidhpurwala 2015-05-12 01:21:03 UTC 
Mozilla developer Mark Hammond reported a flaw in how WebChannel.jsm handles message traffic. He found that when a trusted page is hosted within an <iframe> on an untrusted third-party untrusted framing page, the untrusted page could intercept webchannel responses meant for the trusted page, bypassing origin restrictions. 


External Reference:

http://www.mozilla.org/security/announce/2015/mfsa2015-56.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Mark Hammond as the original reporter.

Statement:

This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5, 6 and 7.