Bug 1395099 (CVE-2016-9077)

Summary: CVE-2016-9077 Mozilla: Canvas filters allow feDisplacementMaps to be applied to cross-origin images, allowing timing attacks on them (MFSA 2016-89)
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: 2016-11-18 14:48:54 UTC Type: ---
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Bug Blocks: 1392803    

Description Huzaifa S. Sidhpurwala 2016-11-15 06:57:17 UTC
Canvas allows the use of the feDisplacementMap filter on images loaded cross-origin. The rendering by the filter is variable depending on the input pixel, allowing for timing attacks when the images are loaded from third party locations.

External Reference:

https://www.mozilla.org/security/announce/2016/mfsa2016-89.html


Acknowledgements:

Name: the Mozilla project
Upstream: Markus Stange

Statement:

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