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             AUSCERT External Security Bulletin Redistribution

    This security update resolves a vulnerability in Microsoft Windows.
                                11 May 2016


        AusCERT Security Bulletin Summary

Product:           Microsoft Windows
Publisher:         Microsoft
Operating System:  Windows
Impact/Access:     Increased Privileges -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-0178  

Original Bulletin: 

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MS16-061: Security Update for Microsoft RPC (3155520)

Document Metadata

Bulletin Number: MS16-061

Bulletin Title: Security Update for Microsoft RPC

Severity: Important

KB Article: 3155520

Version: 1.0

Published Date: May 10, 2016

Executive Summary

This security update resolves a vulnerability in Microsoft Windows. The
vulnerability could allow elevation of privilege if an unauthenticated attacker
makes malformed Remote Procedure Call (RPC) requests to an affected host.
This security update is rated Important for all supported releases of
Microsoft Windows.

Affected Software

Windows Vista
Windows Server 2008
Windows 7
Windows Server 2008 R2
Windows 8.1
Windows Server 2012 and Windows Server 2012 R2
Windows RT
Windows 10

Vulnerability Information

RPC Network Data Representation Engine Elevation of Privilege Vulnerability
- - CVE-2016-0178

An elevation of privilege vulnerability exists in the way that Microsoft
Windows handles specially crafted Remote Procedure Call (RPC) requests. A
privilege elevation can occur when the RPC Network Data Representation (NDR)
Engine improperly frees memory. An attacker who successfully exploited this
vulnerability could execute arbitrary code and take control of an affected
system. An attacker could then install programs; view, change, or delete data;
or create new accounts with full user rights.

An unauthenticated attacker could exploit the vulnerability by making malformed
RPC requests to an affected host. The update addresses this vulnerability
by modifying the way that Microsoft Windows handles RPC messages.
The following table contains a link to the standard entry for each
vulnerability in the Common Vulnerabilities and Exposures list:

Vulnerability Title								CVE number	Publicly disclosed	Exploited
RPC Network Data Representation Engine Elevation of Privilege Vulnerability	CVE-2016-0178	No			No

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