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TITLE:
Microsoft Windows Virtual Address Descriptor Privilege Escalation

SECUNIA ADVISORY ID:
SA32251

VERIFY ADVISORY:
http://secunia.com/advisories/32251/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

OPERATING SYSTEM:
Microsoft Windows XP Home Edition
http://secunia.com/advisories/product/16/
Microsoft Windows XP Professional
http://secunia.com/advisories/product/22/
Microsoft Windows Server 2003 Datacenter Edition
http://secunia.com/advisories/product/1175/
Microsoft Windows Server 2003 Enterprise Edition
http://secunia.com/advisories/product/1174/
Microsoft Windows Server 2003 Standard Edition
http://secunia.com/advisories/product/1173/
Microsoft Windows Server 2003 Web Edition
http://secunia.com/advisories/product/1176/
Microsoft Windows Storage Server 2003
http://secunia.com/advisories/product/12399/
Microsoft Windows Vista
http://secunia.com/advisories/product/13223/
Microsoft Windows Server 2008
http://secunia.com/advisories/product/18255/

DESCRIPTION:
A vulnerability has been reported in Microsoft Windows, which can be
exploited by malicious, local users to gain escalated privileges.

The vulnerability is caused due to an integer overflow error when
processing Virtual Address Descriptor (VAD) parameters. This can be
exploited to cause a memory allocation mapping error and corrupt
memory.

Successful exploitation allows execution of arbitrary code with
escalated privileges.

SOLUTION:
Apply patches.

Windows XP SP2/SP3:
http://www.microsoft.com/downloads/details.aspx?familyid=25997b73-a640-49c1-b19e-768a18bbe22c
  
Windows XP Professional x64 Edition (optionally with SP2):
http://www.microsoft.com/downloads/details.aspx?familyid=50fae854-0bde-46f8-9444-b9e0d9bfecad
  
Windows Server 2003 SP1/SP2:
http://www.microsoft.com/downloads/details.aspx?familyid=e8ef3d5f-dd8e-4945-92cd-9d3e30b16667

Windows Server 2003 x64 Edition (optionally with SP2):
http://www.microsoft.com/downloads/details.aspx?familyid=c2e754f9-086a-494c-bc19-5feed7df8b65

Windows Server 2003 with SP1/SP2 for Itanium-based systems:
http://www.microsoft.com/downloads/details.aspx?familyid=5a3832ec-3f8f-42c1-a603-b1330d527547
  
Windows Vista (optionally with SP1):
http://www.microsoft.com/downloads/details.aspx?familyid=b4212db5-093e-497d-b999-2e3780f9f7c2
  
Windows Vista x64 Edition (optionally with SP1):
http://www.microsoft.com/downloads/details.aspx?familyid=c20808cb-c30a-4b53-91e5-810eb6b4b2e3

Windows Server 2008 for 32-bit systems:
http://www.microsoft.com/downloads/details.aspx?familyid=ec9eeb82-0497-4c55-94bb-9a47cb3521b4

Windows Server 2008 for x64-based systems:
http://www.microsoft.com/downloads/details.aspx?familyid=0bc178b8-f8ae-4f41-8f88-fb6a75be1bca

Windows Server 2008 for Itanium-based systems:
http://www.microsoft.com/downloads/details.aspx?familyid=0af72663-4945-4916-8c55-090ba4d82793

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
MS08-064 (KB956841):
http://www.microsoft.com/technet/security/Bulletin/MS08-064.mspx

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About:
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everybody keeping their systems up to date against the latest
vulnerabilities.

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Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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