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             AUSCERT External Security Bulletin Redistribution

        Cumulative Security Update for Internet Explorer (2809289)
                               12 March 2013


        AusCERT Security Bulletin Summary

Product:           Internet Explorer
Publisher:         Microsoft
Operating System:  Windows XP
                   Windows Server 2003
                   Windows Server 2008
                   Windows Server 2008 R2
                   Windows Server 2012
                   Windows Vista
                   Windows 7
                   Windows 8
                   Windows RT
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2013-1288 CVE-2013-0094 CVE-2013-0093
                   CVE-2013-0092 CVE-2013-0091 CVE-2013-0090
                   CVE-2013-0089 CVE-2013-0088 CVE-2013-0087

Original Bulletin: 

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Microsoft Security Bulletin MS13-021 - Critical

Cumulative Security Update for Internet Explorer (2809289)

Published Date: March 12, 2013

Version: 1.0

General Information

Executive Summary
This security update resolves eight privately reported vulnerabilities and
one publicly disclosed vulnerability in Internet Explorer. The most severe 
vulnerabilities could allow remote code execution if a user views a specially
crafted webpage using Internet Explorer. An attacker who successfully 
exploited 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

This security update is rated Critical for Internet Explorer 6, Internet 
Explorer 7, Internet Explorer 8, Internet Explorer 9, and Internet Explorer 10
on Windows clients and Moderate for Internet Explorer 6, Internet Explorer 7,
Internet Explorer 8, Internet Explorer 9, and Internet Explorer 10 on Windows

Affected Software

Internet Explorer 6
Internet Explorer 7
Internet Explorer 8
Internet Explorer 9
Internet Explorer 10

Vulnerability Information

Multiple Use After Free Vulnerabilities in Internet Explorer

Remote code execution vulnerabilities exist in the way that Internet Explorer 
accesses an object in memory that has been deleted. These vulnerabilities may 
corrupt memory in such a way that an attacker could execute arbitrary code in 
the context of the current user. 

To view these vulnerabilities as a standard entry in the Common Vulnerabilities
and Exposures list, click the link in the following table:  

Vulnerability title								CVE number

Internet Explorer OnResize Use After Free Vulnerability				CVE-2013-0087 
Internet Explorer saveHistory Use After Free Vulnerability			CVE-2013-0088 
Internet Explorer CMarkupBehaviorContext Use After Free Vulnerability		CVE-2013-0089 
Internet Explorer CCaret Use After Free Vulnerability				CVE-2013-0090 
Internet Explorer CElement Use After Free Vulnerability				CVE-2013-0091 
Internet Explorer GetMarkupPtr Use After Free Vulnerability			CVE-2013-0092 
Internet Explorer onBeforeCopy Use After Free Vulnerability			CVE-2013-0093 
Internet Explorer removeChild Use After Free Vulnerability			CVE-2013-0094 
Internet Explorer CTreeNode Use After Free Vulnerability			CVE-2013-1288

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