Bug 1291588 (CVE-2015-7215)

Summary: CVE-2015-7215 Mozilla: Cross-origin information leak through web workers error events (MFSA 2015-140)
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: 2015-12-16 09:03:57 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Blocks: 1290704    

Description Huzaifa S. Sidhpurwala 2015-12-15 08:43:47 UTC 
Security researcher Masato Kinugawa reported a cross-origin information leak through the error events in web workers. This violates same-origin policy and the leaked information could potentially be used by a malicious party to gather authentication tokens and other data from third-party websites.

This issue affects other browsers as well and is not limited to Mozilla products.


External Reference:

https://www.mozilla.org/security/announce/2015/mfsa2015-140.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Masato Kinugawa  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.