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Microsoft Windows OLE Dialog Memory Corruption Vulnerability
Date: Tuesday, February 13, 2007 @ 19:09:45 CET
Topic: Security


VERIFY ADVISORY: http://secunia.com/advisories/24147/

CRITICAL: Moderately critical

IMPACT: System access

WHERE: >From remote

Microsoft Windows 2000 Advanced Server - http://secunia.com/product/21/
Microsoft Windows 2000 Datacenter Server - http://secunia.com/product/1177/
Microsoft Windows 2000 Professional - http://secunia.com/product/1/
Microsoft Windows 2000 Server - http://secunia.com/product/20/
Microsoft Windows Server 2003 Datacenter Edition - http://secunia.com/product/1175/
Microsoft Windows Server 2003 Enterprise Edition - http://secunia.com/product/1174/
Microsoft Windows Server 2003 Standard Edition - http://secunia.com/product/1173/
Microsoft Windows Server 2003 Web Edition - http://secunia.com/product/1176/
Microsoft Windows Storage Server 2003 - http://secunia.com/product/12399/
Microsoft Windows XP Home Edition - http://secunia.com/product/16/
Microsoft Windows XP Professional - http://secunia.com/product/22/
DESCRIPTION: A vulnerability has been reported in Microsoft Windows, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to an error in Windows OLE Dialog components handling of OLE objects in RTF (Rich Text Format) files. This can be exploited to cause a memory corruption by e.g. tricking a user into opening a malicious RTF document using Wordpad and interact with a specially crafted embedded OLE object. Successful exploitation allows execution of arbitrary code.

SOLUTION: Apply patches:
Microsoft Windows 2000 Service Pack 4: http://www.microsoft.com/downloads/details.aspx?FamilyId=7b1a81d5-1072-49d9-a24a-0e2630f62d8c
Microsoft Windows XP Service Pack 2: http://www.microsoft.com/downloads/details.aspx?FamilyId=e9b84661-25e3-4d38-95b1-8d3e7af565aa
Microsoft Windows XP Professional x64 Edition: http://www.microsoft.com/downloads/details.aspx?FamilyId=57c1b19f-3242-457c-bedf-d35a8efe525c
Microsoft Windows Server 2003 (with or without SP1): http://www.microsoft.com/downloads/details.aspx?FamilyId=eaed6f59-801e-45d7-9518-469d0de13cad
Microsoft Windows Server 2003 for Itanium-based Systems (with or without SP1): http://www.microsoft.com/downloads/details.aspx?FamilyId=cd1b18ae-
Microsoft Windows Server 2003 x64 Edition: http://www.microsoft.com/downloads/details.aspx?FamilyId=11f4f8f6-b8ce-4a5f-b7ed-8389ccc56473

The vendor credits:
* Kostya Kortchinsky, Immunity, Inc.
* Fabrice Desclaux, EADS Common Research Center.

ORIGINAL ADVISORY: MS07-011 (KB926436): http://www.microsoft.com/technet/security/Bulletin/MS07-011.mspx

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