Microsoft Security Bulletin MS08-066 - Important
Vulnerability in the Microsoft Ancillary Function Driver Could Allow Elevation of Privilege (956803)
Published: | Updated:
This security update resolves a privately reported vulnerability in the Microsoft Ancillary Function Driver. A local attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
This is an important security update for all supported editions of Windows XP and Windows Server 2003. For more information, see the subsection, Affected and Non-Affected Software, in this section.
This security update addresses the vulnerability by correctly validating input passed to the Windows Kernel from user mode through the AFD component. For more information about this vulnerability, see the Frequently Asked Questions (FAQ) subsection under the next section, Vulnerability Information.
Recommendation. Microsoft recommends that customers apply the update at the earliest opportunity.
Known Issues. Microsoft Knowledge Base Article 956803 documents the currently known issues that customers may experience when installing this security update. The article also documents recommended solutions for these issues.
The following software have been tested to determine which versions or editions are affected. Other versions or editions are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, visit Microsoft Support Lifecycle.
|Operating System||Maximum Security Impact||Aggregate Severity Rating||Bulletins Replaced by this Update|
|Windows XP Service Pack 2 and Windows XP Service Pack 3||Elevation of Privilege||Important||None|
|Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2||Elevation of Privilege||Important||None|
|Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2||Elevation of Privilege||Important||None|
|Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2||Elevation of Privilege||Important||None|
|Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems||Elevation of Privilege||Important||None|
|Microsoft Windows 2000 Service Pack 4|
|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|
Microsoft thanks the following for working with us to help protect customers:
- Fabien Le Mentec of SkyRecon for reporting the AFD Kernel Overwrite Vulnerability (CVE-2008-3464)
- Customers in the U.S. and Canada can receive technical support from Microsoft Product Support Services at 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates.
- International customers can receive support from their local Microsoft subsidiaries. There is no charge for support that is associated with security updates. For more information about how to contact Microsoft for support issues, visit the International Support Web site.
The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
- V1.0 (October 14, 2008): Bulletin published.
- V1.1 (January 13, 2009): Added an entry to the section, Frequently Asked Questions (FAQ) Related to this Security Update, explaining this revision as a detection change for this security update. The corrected detection offers the security update to affected systems that previously were not offered this security update. Customers who have successfully updated their systems do not need to reinstall this update.