Bug 1236950 (CVE-2015-2727)

Summary: CVE-2015-2727 Mozilla: Local files or privileged URLs in pages can be opened into new tabs (MFSA 2015-60)
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA 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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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2015-07-06 04:26:50 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Blocks: 1235754    

Description Huzaifa S. Sidhpurwala 2015-06-30 04:56:26 UTC 
Security researcher Jann Horn reported that when Mozilla Foundation Security Advisory 2015-25 was fixed in Firefox 37, an error was made that caused the fix to not be applied to Firefox 38, effectively causing the bug to be unfixed in Firefox 38 (and Firefox ESR38) once it shipped. As Armin Razmdjou reported for that issue, opening hyperlinks on a page with the mouse and specific keyboard key combinations could allow a Chrome privileged URL to be opened without context restrictions being preserved. This could allow for local files or resources from a known location to be opened with local privileges, bypassing security protections. 


External Reference:

http://www.mozilla.org/security/announce/2015/mfsa2015-60.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Jann Horn as the original reporter.
Comment 1 errata-xmlrpc 2015-07-03 05:13:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 5

Via RHSA-2015:1207 https://rhn.redhat.com/errata/RHSA-2015-1207.html
Comment 2 Huzaifa S. Sidhpurwala 2015-07-06 04:26:50 UTC 
Statement:

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