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             AUSCERT External Security Bulletin Redistribution

                               ESB-2015.0329
          MS15-016: Vulnerability in Microsoft Graphics Component
                    Could Allow Information Disclosure
                             11 February 2015

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

Product:           Microsoft Windows
Publisher:         Microsoft
Operating System:  Windows
Impact/Access:     Access Confidential Data -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-0061  

Original Bulletin: 
   https://technet.microsoft.com/en-us/library/security/MS15-016

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Bulletin Number: MS15-016

Bulletin Title: Vulnerability in Microsoft Graphics Component Could Allow 
Information Disclosure

Severity: Important

KB Article: 3029944

Version: 1.0

Published Date: February 10, 2015

Description: This security update resolves a privately reported vulnerability
in Microsoft Windows. The vulnerability could allow information disclosure if
a user browses to a website containing a specially crafted TIFF image. This 
vulnerability would not allow an attacker to execute code or to elevate their
user rights directly, but it could be used to obtain information that could be
used to try to further compromise the affected system.

Executive Summary

This security update resolves a privately reported vulnerability in Microsoft
Windows. The vulnerability could allow information disclosure if a user 
browses to a website containing a specially crafted TIFF image. This 
vulnerability would not allow an attacker to execute code or to elevate their
user rights directly, but it could be used to obtain information that could be
used to try to further compromise the affected system.

This security update is rated Important for all supported releases of 
Microsoft Windows. For more information, see the Affected Software section.

Affected Software

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 Service Pack 1

Windows 7 for x64-based Systems Service Pack 1

Windows Server 2008 R2 for x64-based Systems Service Pack 1

Windows Server 2008 R2 for Itanium-based Systems Service Pack 1

Windows 8 for 32-bit Systems

Windows 8 for x64-based Systems

Windows 8.1 for 32-bit Systems

Windows 8.1 for x64-based Systems

Windows Server 2012

Windows Server 2012 R2

Windows RT[1]

Windows RT 8.1[1]

Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core 
installation)

Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core 
installation)

Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core 
installation)

Windows Server 2012 (Server Core installation)

Windows Server 2012 R2 (Server Core installation)

[1]This update is available via Windows Update only.

Vulnerability Information

TIFF Processing Information Disclosure Vulnerability - CVE-2015-0061

An information disclosure vulnerability exists when Windows fails to properly
handle uninitialized memory when parsing certain, specially crafted TIFF image
format files. The vulnerability could allow information disclosure if an 
attacker runs a specially crafted application on an affected system.

An attacker could host a specially crafted website that is designed to exploit
this vulnerability and then convince a user to view the website. This could 
also include compromised websites and websites that accept or host 
user-provided content or advertisements. These websites could contain 
specially crafted content that could exploit this vulnerability. In all cases,
however, an attacker would have no way to force users to visit these websites.
Instead, an attacker would have to convince users to visit the website, 
typically by getting them to click a link in an instant messenger or email 
message that takes users to the attacker's website. It could also be possible
to display specially crafted web content by using banner advertisements or by
using other methods to deliver web content to affected systems.

An attacker who successfully exploited this vulnerability could potentially 
read data which was not intended to be disclosed. Note that this vulnerability
would not allow an attacker to execute code or to elevate their user rights 
directly, but it could be used to obtain information that could be used to try
to further compromise the affected system. The update addresses the 
vulnerability by correcting how Windows processes TIFF image format files.

Microsoft received information about this vulnerability through coordinated 
vulnerability disclosure. When this security bulletin was originally issued 
Microsoft had not received any information to indicate that this vulnerability
had been publicly used to attack customers.

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