Bug 1180964 (CVE-2014-8637)

Summary: CVE-2014-8637 Mozilla: Uninitialized memory use during bitmap rendering (MFSA 2015-02)
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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Last Closed: 2015-01-12 05:47:09 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Blocks: 1179163    

Description Huzaifa S. Sidhpurwala 2015-01-12 04:11:14 UTC 
Google security researcher Michal Zalewski reported that when a malformed bitmap image is rendered by the bitmap decoder within a <canvas> element, memory may not always be properly initialized. The resulting image then uses this uninitialized memory during rendering, allowing data to potentially leak to web content. 


External Reference:

http://www.mozilla.org/security/announce/2015/mfsa2015-02.html


Acknowledgements:

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