Date: 11 March 2009
References: AL-2009.0016
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A U S C E R T A L E R T
AL-2009.0017 -- AUSCERT ALERT
[Win]
Vulnerabilities in Windows Kernel Could Allow Remote Code Execution
11 March 2009
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AusCERT Alert Summary
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Product: Kernel
Publisher: Microsoft
Operating System: Windows 2000
Windows XP
Windows Server 2003
Windows Vista
Windows Server 2008
Impact: Provide Misleading Information
Access: Remote/Unauthenticated
CVE Names: CVE-2009-0083 CVE-2009-0082 CVE-2009-0081
Ref: AL-2009.0016
Original Bulletin:
http://www.microsoft.com/technet/security/Bulletin/MS09-006.mspx
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Microsoft Security Bulletin MS09-006 - Critical
Vulnerabilities in Windows Kernel Could Allow Remote Code Execution (958690)
Published: March 10, 2009
Version: 1.0
General Information
Executive Summary
This security update resolves several privately reported
vulnerabilities in the Windows kernel. The most serious vulnerability
could allow remote code execution if a user viewed a specially crafted
EMF or WMF image file from an affected system.
This security update is rated Critical for all supported editions of
Microsoft Windows 2000, Windows XP, Windows Server 2003, Windows
Vista, and Windows Server 2008. For more information, see the
subsection, Affected and Non-Affected Software, in this section.
The security update addresses the vulnerabilities by validating input
passed from user mode through the kernel component of GDI, correcting
the way that the kernel validates handles, and changing the way that
the Windows kernel handles specially crafted invalid pointers. For
more information about the vulnerabilities, see the Frequently Asked
Questions (FAQ) subsection for the specific vulnerability entry under
the next section, Vulnerability Information.
Recommendation. The majority of customers have automatic updating
enabled and will not need to take any action because this security
update will be downloaded and installed automatically. Customers who
have not enabled automatic updating need to check for updates and
install this update manually. For information about specific
configuration options in automatic updating, see Microsoft
Knowledge Base Article 294781.
For administrators and enterprise installations, or end users who want
to install this security update manually, Microsoft recommends that
customers apply the update immediately using update management
software, or by checking for updates using the Microsoft Update
service.
Affected Software
Microsoft Windows 2000 Service Pack 4
Windows XP Service Pack 2 and Windows XP Service Pack 3
Windows XP Professional x64 Edition and Windows XP Professional
x64 Edition Service Pack 2
Windows Server 2003 Service Pack 1 and Windows Server 2003 Service
Pack 2
Windows Server 2003 x64 Edition and Windows Server 2003 x64
Edition Service Pack 2
Windows Server 2003 with SP1 for Itanium-based Systems and Windows
Server 2003 with SP2 for Itanium-based Systems
Windows Vista and Windows Vista Service Pack 1
Windows Vista x64 Edition and Windows Vista x64 Edition Service
Pack 1
Windows Server 2008 for 32-bit Systems
Windows Server 2008 for x64-based Systems
Windows Server 2008 for Itanium-based Systems
Vulnerability Information
Windows Kernel Input Validation Vulnerability - CVE-2009-0081
A remote code execution vulnerability exists in the Windows kernel due
to improper validation of input passed from user mode through the
kernel component of GDI. An attacker who successfully exploited this
vulnerability 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.
Workarounds for Windows Kernel Input Validation Vulnerability -
CVE-2009-0081
Turn off metafile processing by modifying the registry
Customers who have applied the security update associated with
Microsoft Security Bulletin MS07-017 or customers using Windows Vista
or Windows Server 2008 can disable metafile processing by modifying
the registry. This setting will help protect the affected system from
attempts to exploit this vulnerability.
Windows Kernel Handle Validation Vulnerability - CVE-2009-0082
An elevation of privilege vulnerability exists in the Windows kernel
due to the manner in which the kernel validates handles. An attacker
who successfully exploited this vulnerability 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.
Workarounds for Windows Kernel Handle Validation Vulnerability -
CVE-2009-0082
Microsoft has not identified any workarounds for this vulnerability.
Windows Kernel Invalid Pointer Vulnerability - CVE-2009-0083
An elevation of privilege vulnerability exists in the Windows kernel
due to improper handling of a specially crafted invalid pointer. An
attacker who successfully exploited this vulnerability 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.
Workarounds for Windows Kernel Invalid Pointer Vulnerability - CVE-2009-0083
Microsoft has not identified any workarounds for this vulnerability.
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