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             AUSCERT External Security Bulletin Redistribution

                               ESB-2012.0445
         Vulnerabilities in .NET Framework Could Allow Remote Code
                            Execution (2693777)
                                9 May 2012

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

Product:           Microsoft .NET Framework
Publisher:         Microsoft
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-0161 CVE-2012-0160 

Original Bulletin: 
   http://technet.microsoft.com/en-us/security/bulletin/ms12-035

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Microsoft Security Bulletin MS12-035 - Critical
Vulnerabilities in .NET Framework Could Allow Remote Code Execution (2693777)

Published: Tuesday, May 08, 2012

Version: 1.0
General Information
Executive Summary

This security update resolves two privately reported vulnerabilities in the 
.NET Framework. The vulnerabilities could allow remote code execution on a 
client system if a user views a specially crafted webpage using a web browser 
that can run XAML Browser Applications (XBAPs). 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 all supported editions of the 
Microsoft .NET Framework on all supported editions of Microsoft Windows. For 
more information, see the subsection, Affected and Non-Affected Software, in 
this section.

Affected Software

Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
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 Server 2008 for Itanium-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
Windows Server 2008 R2 for Itanium-based Systems
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Microsoft .NET Framework 1.0 Service Pack 3 (Media Center Edition 2005 and 
  Tablet PC Edition 2005 only)
Microsoft .NET Framework 1.1 Service Pack 1
Microsoft .NET Framework 2.0 Service Pack 2
Microsoft .NET Framework 3.0 Service Pack 2
Microsoft .NET Framework 3.5 Service Pack 1
Microsoft .NET Framework 3.5.1
Microsoft .NET Framework 4 [1]

[1].NET Framework 4 and .NET Framework 4 Client Profile affected. The .NET 
Framework version 4 redistributable packages are available in two profiles: 
.NET Framework 4 and .NET Framework 4 Client Profile. .NET Framework 4 Client 
Profile is a subset of .NET Framework 4. The vulnerability addressed in this 
update affects both .NET Framework 4 and .NET Framework 4 Client Profile. For
more information, see the MSDN article, Installing the .NET Framework.

Vulnerability Information

.NET Framework Serialization Vulnerability - CVE-2012-0160

A remote code execution vulnerability exists in the Microsoft .NET Framework 
due to the improper serialization of untrusted input. An attacker who 
successfully exploited this vulnerability could take complete control of an 
affected system. An attacker could then install programs; view, change, or 
delete data; or create new accounts with full user rights. 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.

To view this vulnerability as a standard entry in the Common Vulnerabilities 
and Exposures list, see CVE-2012-0160.

.NET Framework Serialization Vulnerability - CVE-2012-0161

A remote code execution vulnerability exists in the Microsoft .NET Framework 
due to the improper serialization of untrusted input through partially trusted 
assemblies. An attacker who successfully exploited this vulnerability could 
take complete control of an affected system. An attacker could then install
programs; view, change, or delete data; or create new accounts with full user
rights. 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.

To view this vulnerability as a standard entry in the Common Vulnerabilities 
and Exposures list, see CVE-2012-0161.

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