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Category:   OS (Microsoft)  >   Windows Kernel Vendors:   Microsoft
Windows Kernel GDI Input Validation Flaw in Processing Application Size Parameters Lets Local Users Gain System Privileges
SecurityTracker Alert ID:  1017846
SecurityTracker URL:
CVE Reference:   CVE-2006-5586   (Links to External Site)
Updated:  Apr 6 2007
Original Entry Date:  Apr 3 2007
Impact:   Execution of arbitrary code via local system, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2000 SP4, XP SP2; and prior service packs
Description:   A vulnerability was reported in the Windows Kernel. A local user can obtain system privileges on the target system.

The Microsoft Windows graphics device interface (GDI) interface does not properly validate user-supplied input. A local user can invoke the interface to execute arbitrary commands on the target system with System privileges.

A specially crafted application window size parameter can trigger the vulnerability.

Impact:   A local user can obtain System privileges on the target system.
Solution:   The vendor has issued the following fixes:

Microsoft Windows 2000 Service Pack 4:

Microsoft Windows XP Service Pack 2:

Microsoft Windows XP Professional x64 Edition and Microsoft Windows XP Professional x64 Edition Service Pack 2:

A restart is required.

The MS07-017 patch may cause some third-party applications to fail to start on Windows XP. A hotfix is available for this problem, as described in the following knowledge base article:

The Microsoft advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Input validation error

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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