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Microsoft Collaboration Data Objects Buffer Overflow Vulnerability
Secunia Advisory: SA17167
Release Date: 2005-10-11
Last Update: 2005-11-21
Popularity: 15,554 views

Critical:
Highly critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

OS:Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server
Microsoft Windows Server 2003 Datacenter Edition
Microsoft Windows Server 2003 Enterprise Edition
Microsoft Windows Server 2003 Standard Edition
Microsoft Windows Server 2003 Web Edition
Microsoft Windows XP Embedded
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional

Software:Microsoft Exchange Server 2000

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CVE reference:CVE-2005-1987


Description:
Gary O'leary-Steele has reported a vulnerability in Microsoft Windows and Microsoft Exchange 2000 Server, which can be exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to a boundary error in the CDO (Collaboration Data Objects) COM component when event sinks are used to parse email contents. This can be exploited to cause a stack-based buffer overflow via a specially crafted email message with an overly long header line that is delivered through SMTP.

Successful exploitation allows arbitrary code execution.

Solution:
Apply patches.

Microsoft Windows 2000 (requires SP 4):
http://www.microsoft.com/downloads/de...=AE0BA6D7-37AF-46E8-9E25-AB63883FA944

Microsoft Windows XP (requires SP 1 or SP 2):
http://www.microsoft.com/downloads/de...=E0DAF2D1-656C-4580-94C1-8AB009B4AD4F

Microsoft Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/de...=D389EF4D-583D-41C0-9081-844D348F3817

Microsoft Windows XP Embedded (with SP2):
http://www.microsoft.com/downloads/de...=e7b6d199-7607-44a8-96fd-5a2386427bd9

Microsoft Windows XP Embedded (with SP1):
http://www.microsoft.com/downloads/de...=47633799-2103-4fc2-b63d-a9581a2d2f2d

Microsoft Windows Server 2003 (with or without SP 1):
http://www.microsoft.com/downloads/de...=1BC06799-B9F5-416F-8965-DC0E07A24A29

Microsoft Windows Server 2003 (Itanium) (with or without SP 1):
http://www.microsoft.com/downloads/de...=956FFD90-60AF-4296-8765-F0A17A77DB77

Microsoft Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/de...=5504C410-CDCB-4826-B002-DBA0E3A402A4

Microsoft Exchange 2000 Server (requires SP 3 and Post-SP 3 Update Rollup of August 2004):
http://www.microsoft.com/downloads/de...=60FD0DDC-04B7-4879-930B-53375823CD51

Provided and/or discovered by:
Gary O'leary-Steele, Sec-1.

Changelog:
2005-10-12: Added link to US-CERT vulnerability note. Updated "Description" and credit sections.
2005-11-21: Added patch information for Windows XP Embedded.

Original Advisory:
MS05-048 (KB907245):
http://www.microsoft.com/technet/security/Bulletin/MS05-048.mspx

Other References:
US-CERT VU#883460
http://www.kb.cert.org/vuls/id/883460


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