Bug 1315782 (CVE-2016-1973)

Summary: CVE-2016-1973 Mozilla: Use-after-free in GetStaticInstance in WebRTC (MFSA 2016-33)
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: cschalle, 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: 2016-03-28 05:34:48 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Blocks: 1313724    

Description Huzaifa S. Sidhpurwala 2016-03-08 15:19:51 UTC 
Security researcher Ronald Crane reported a race condition in GetStaticInstance in WebRTC which results in a use-after-free. This could result in a potentially exploitable crash. This issue was found through code inspection and does not have clear mechanism to be exploited through web content but is vulnerable if a mechanism can be found to trigger it. 


External Reference:

https://www.mozilla.org/security/announce/2016/mfsa2016-33.html


Acknowledgements:

Name: the Mozilla project
Upstream: Ronald Crane
Comment 1 errata-xmlrpc 2016-03-09 05:12:52 UTC 
This issue has been addressed in the following products:

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

Via RHSA-2016:0373 https://rhn.redhat.com/errata/RHSA-2016-0373.html