Bug 840211 (CVE-2012-1958)

Summary: CVE-2012-1958 Mozilla: use-after-free in nsGlobalWindow::PageHidden (MFSA 2012-48)
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: gecko-bugs-nobody, jhorak, security-response-team, stransky
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2012-07-18 07:30:30 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 835033    

Description Huzaifa S. Sidhpurwala 2012-07-14 12:04:45 UTC 
Security researcher Arthur Gerkis used the Address Sanitizer tool to find a use-after-free in nsGlobalWindow::PageHidden when mFocusedContent is released and oldFocusedContent is used afterwards. This use-after-free could possibly allow for remote code execution. 

Reference:
http://www.mozilla.org/security/announce/2012/mfsa2012-48.html

Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Security researcher Arthur Gerkis as the original reporter of this flaw.
Comment 1 errata-xmlrpc 2012-07-17 18:57:48 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2012:1089 https://rhn.redhat.com/errata/RHSA-2012-1089.html
Comment 2 errata-xmlrpc 2012-07-17 19:28:13 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 6

Via RHSA-2012:1088 https://rhn.redhat.com/errata/RHSA-2012-1088.html