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             AUSCERT External Security Bulletin Redistribution

                               ESB-2012.0656
        Cumulative Security Update for Internet Explorer (2719177)
                               10 July 2012

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Internet Explorer 9
Publisher:         Microsoft
Operating System:  Windows Vista
                   Windows Server 2008
                   Windows 7
                   Windows Server 2008 R2
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-1524 CVE-2012-1522 

Original Bulletin: 
   http://technet.microsoft.com/en-us/security/bulletin/MS12-044

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Microsoft Security Bulletin MS12-044 - Critical

Cumulative Security Update for Internet Explorer (2719177)

Published Date: July 10, 2012

Version: 1.0

General Information

Executive Summary 

This security update resolves two privately reported vulnerabilities in 
Internet Explorer. The vulnerabilities could allow remote code execution if a 
user views a specially crafted webpage using Internet Explorer. An attacker 
who successfully exploited any of these vulnerabilities could gain the same 
user rights as the current user. Users whose accounts are configured to have 
fewer user rights on the system could be less impacted than users who operate 
with administrative user rights.

This security update is rated Critical for Internet Explorer 9 on Windows 
clients and Moderate for Internet Explorer 9 on Windows servers. For more 
information, see the subsection, Affected and Non-Affected Software, in this 
section.

Affected Software 

Internet Explorer 9 
Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows 7 for 32-bit Systems 
Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems 
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems 
Windows Server 2008 R2 for x64-based Systems Service Pack 1

Vulnerability Information

Cached Object Remote Code Execution Vulnerability - CVE-2012-1522

A remote code execution vulnerability exists in the way that Internet Explorer 
accesses an object that has been deleted. The vulnerability may corrupt memory 
in such a way that an attacker could execute arbitrary code in the context of 
the current user.

Attribute Remove Remote Code Execution Vulnerability - CVE-2012-1524

A remote code execution vulnerability exists in the way that Internet Explorer 
accesses an object that has been deleted. The vulnerability may corrupt memory 
in such a way that an attacker could execute arbitrary code in the context of 
the current user.

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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
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