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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.2929
         Microsoft Security Bulletin MS16-150: Security Update for
                   Windows Secure Kernel Mode (3205642)
                             13 December 2016

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

Product:           Microsoft Windows
Publisher:         Microsoft
Operating System:  Windows 10
                   Windows Server 2016
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-7271  

Original Bulletin: 
   https://technet.microsoft.com/en-us/library/security/MS16-150

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Microsoft Security Bulletin MS16-150: Security Update for Windows Secure 
Kernel Mode (3205642)

Published Date:	 	December 14, 2016

Version: 		1.0

Executive Summary

This security update resolves a vulnerability in Microsoft Windows. The 
vulnerability could allow elevation of privilege if a locally-authenticated 
attacker runs a specially crafted application on a targeted system. An 
attacker who successfully exploited the vulnerability could violate virtual 
trust levels (VTL).

This security update is rated Important for all supported editions of Windows
10 and Windows Server 2016.

Affected Software				
Windows 10
Windows Server 2016

Vulnerability Information

Windows Secure Kernel Mode Elevation of Privilege Vulnerability CVE-2016-7271

An elevation of privilege vulnerability exists when Windows Secure Kernel Mode
fails to properly handle objects in memory. An attacker who successfully 
exploited the vulnerability could violate virtual trust levels (VTL).

A locally-authenticated attacker could attempt to exploit the vulnerability by
running a specially crafted application on a targeted system.

The security update addresses the vulnerability by correcting how Windows 
handles objects in memory to properly enforce VLTs

The following table contains links to the standard entry for each 
vulnerability in the Common Vulnerabilities and Exposures list:

Vulnerability title					CVE number	Publicly disclosed	Exploited
Secure Kernel Mode Elevation of Privilege Vulnerability	CVE-2016-7271	No			No

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