Bug 1236955 (CVE-2015-2722, CVE-2015-2733)

Summary: CVE-2015-2722 CVE-2015-2733 Mozilla: Use-after-free in workers while using XMLHttpRequest (MFSA 2015-65)
Product: [Other] Security Response Reporter: Huzaifa S. Sidhpurwala <huzaifas>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedCC: jhorak, jrusnack, 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 04:27:36 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 05:11:23 UTC 
Security researcher Looben Yan used the Address Sanitizer tool to discover two related use-after-free vulnerabilities that occur when using XMLHttpRequest in concert with either shared or dedicated workers. These errors occur when the XMLHttpRequest object is attached to a worker but that object is incorrectly deleted while still in use. This results in exploitable crashes.


External Reference:

http://www.mozilla.org/security/announce/2015/mfsa2015-65.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Looben Yan as the original reporter.
Comment 1 errata-xmlrpc 2015-07-03 05:13:27 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 04:27:36 UTC 
Statement:

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