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AUSCERT External Security Bulletin Redistribution
ESB-2016.0077
Microsoft Security Bulletin MS16-005: Security Update for Windows
Kernel-Mode Drivers to Address Remote Code Execution
13 January 2016
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AusCERT Security Bulletin Summary
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Product: Microsoft Windows
Publisher: Microsoft
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2016-0009 CVE-2016-0008
Original Bulletin:
https://technet.microsoft.com/en-us/library/security/MS16-005
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Microsoft Security Bulletin MS16-005: Security Update for Windows Kernel-Mode
Drivers to Address Remote Code Execution (3124584)
Document Metadata
Bulletin Number: MS16-005
Bulletin Title: Security Update for Windows Kernel-Mode Drivers to Address
Remote Code Execution
Severity: Critical
KB Article: 3124584
Version: 1.0
Published Date: January 12, 2016
Executive Summary
This security update resolves vulnerabilities in Microsoft Windows. The more
severe of the vulnerabilities could allow remote code execution if a user
visits a malicious website.
Affected Software
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 8.1 Windows RT[1]
Windows RT 8.1[1]
Windows 10 for 32-bit Systems[2]
Windows 10 for x64-based Systems[2]
Windows 10 Version 1511 for 32-bit Systems[2]
Windows 10 Version 1511 for x64-based Systems[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. In addition to containing non-security
updates, they also contain all of the security fixes for all of the Windows
10-affected vulnerabilities shipping with the monthly security release. The
update is available via the Windows Update Catalog.
Vulnerability Information
Windows GDI32.dll ASLR Bypass Vulnerability - CVE-2016-0008
A security feature bypass vulnerability exists in the way that the Windows
graphics device interface handles objects in memory, allowing an attacker to
retrieve information that could lead to an Address Space Layout Randomization
(ASLR) bypass.
To exploit this vulnerability, in a web-based attack scenario, an attacker
could host a specially crafted website that is designed to exploit the
vulnerability through Internet Explorer and then convince users to view the
website. This could also include compromised websites or websites that accept
or host user-provided content or banner advertisements; such websites could
contain specially crafted content that is designed to exploit the
vulnerability. In all cases, however, an attacker would have no way to force
users to visit such websites. Instead, an attacker would have to convince
users to do so, typically by getting them to click a link in an email or
Instant Messenger request.
In an email attack scenario, an attacker could exploit the vulnerability by
sending Outlook users a specially crafted email, or sending them a specially
crafted Office document as an attachment, and convincing the user to read the
message or open the file.
An attacker could also exploit this vulnerability by hosting a malicious file
on a network share and convincing users to navigate to the folder in Windows
Explorer. The security update addresses the vulnerability by correcting how
the Windows graphics device interface handles memory addresses, thereby
helping to protect the integrity of the ASLR security feature.
Microsoft received information about this vulnerability through coordinated
vulnerability disclosure. At the time this security bulletin was originally
issued, Microsoft was unaware of any attack attempting to exploit this
vulnerability.
Win32k Remote Code Execution Vulnerability - CVE-2016-0009
A remote code execution vulnerability exists in the way that Windows handles
objects in memory. An attacker who successfully exploited this vulnerability
could run arbitrary code on a target system.
To exploit this vulnerability, an attacker would first have to convince a user
to visit a malicious website that could exploit the vulnerability and run
arbitrary code with the logged on users privileges. The security update
addresses this vulnerability by correcting how Windows handles objects in
memory.
This vulnerability has been publicly disclosed. It has been assigned Common
Vulnerability and Exposure number CVE-2016-0009. At the time this security
bulletin was originally issued, Microsoft was unaware of any attack attempting
to exploit this vulnerability.
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