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AUSCERT External Security Bulletin Redistribution
ESB-2016.1921
Microsoft Security Bulletin MS16-098 - Important: Security
Update for Windows Kernel-Mode Drivers (3178466)
9 August 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: Microsoft Windows
Publisher: Microsoft
Operating System: Windows
Impact/Access: Administrator Compromise -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2016-3311 CVE-2016-3310 CVE-2016-3309
CVE-2016-3308
Original Bulletin:
https://technet.microsoft.com/en-us/library/security/MS16-098
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Microsoft Security Bulletin MS16-098 - Important: Security Update for Windows
Kernel-Mode Drivers (3178466)
Executive Summary
This security update resolves vulnerabilities in Microsoft Windows. The
vulnerabilities could allow elevation of privilege if an attacker logs on to
an affected system and runs a specially crafted application that could exploit
the vulnerabilities and take control of an affected system.
This security update is rated Important for all supported releases of Windows.
Affected Software
Windows Vista
Windows Server 2008
Windows 7
Windows Server 2008 R2
Windows 8.1
Windows Server 2012
Windows Server 2012 R2
Windows RT 8.1 [1]
Windows 10 [2]
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 only available via Windows Update.
[2] Windows 10 updates are cumulative. The monthly security release includes
all security fixes for vulnerabilities that affect Windows 10, in addition to
non-security updates. The updates are available via the Microsoft Update
Catalog.
Vulnerability Information
Multiple Win32k Elevation of Privilege Vulnerabilities
Multiple elevation of privilege vulnerabilities exist when the Windows
kernel-mode driver fails to properly handle objects in memory. An attacker who
successfully exploited these vulnerabilities could run arbitrary code in
kernel mode. An attacker could then install programs; view, change, or delete
data; or create new accounts with full user rights.
To exploit these vulnerabilities, an attacker would first have to log on to
the system. An attacker could then run a specially crafted application to take
control of an affected system. The update addresses the vulnerabilities by
correcting how the Windows kernel-mode driver handles objects in memory.
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
Win32k Elevation of Privilege Vulnerability CVE-2016-3308 No No
Win32k Elevation of Privilege Vulnerability CVE-2016-3309 No No
Win32k Elevation of Privilege Vulnerability CVE-2016-3310 No No
Win32k Elevation of Privilege Vulnerability CVE-2016-3311 No No
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