From: Secunia Security Advisories (sec-advsecunia.com)
Date: Tue Oct 12 2004 - 17:20:37 CDT

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TITLE:
Microsoft Windows Shell and Program Group Converter Vulnerabilities

SECUNIA ADVISORY ID:
SA12808

VERIFY ADVISORY:
http://secunia.com/advisories/12808/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
From remote

OPERATING SYSTEM:
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 98
http://secunia.com/product/12/
Microsoft Windows 98 Second Edition
http://secunia.com/product/13/
Microsoft Windows Millenium
http://secunia.com/product/14/
Microsoft Windows NT 4.0 Server
http://secunia.com/product/18/
Microsoft Windows NT 4.0 Server, Terminal Server Edition
http://secunia.com/product/19/
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 XP Home Edition
http://secunia.com/product/16/
Microsoft Windows XP Professional
http://secunia.com/product/22/

DESCRIPTION:
Two vulnerabilities have been reported in Microsoft Windows, which
can be exploited by malicious people to compromise a user's system.

1) A boundary error in the Windows Shell when starting applications
can be exploited to cause a buffer overflow. This can be exploited to
execute arbitrary code on a user's system by tricking the user into
visiting a malicious web site.

2) A boundary error in the Program Group Converter when handling
certain requests can be exploited to cause a buffer overflow. This
can be exploited to execute arbitrary code on a user's system by
tricking the user into opening a ".grp" file attachment or click a
HTML link.

NOTE: Microsoft Windows XP Service Pack 2 is not vulnerable.

SOLUTION:
Apply patches.

Microsoft Windows NT Server 4.0 (requires SP6a):
http://www.microsoft.com/downloads/details.aspx?FamilyId=F8046E83-E151-4AAF-80CB-AD4F31C02EAC

Microsoft Windows NT Server 4.0 Terminal Server Edition (requires
SP6)
http://www.microsoft.com/downloads/details.aspx?FamilyId=2DCC6C99-509D-41A5-A3C7-CAC017D633E1
        
Microsoft Windows 2000 (requires SP3 or SP4):
http://www.microsoft.com/downloads/details.aspx?FamilyId=846E7479-133B-45D7-AA69-D9257F1BE178

Microsoft Windows XP (prior to SP2):
http://www.microsoft.com/downloads/details.aspx?FamilyId=FB93CB07-3A7E-444C-B083-324FC9049B94

Microsoft Windows XP 64-Bit Edition (requires SP1):
http://www.microsoft.com/downloads/details.aspx?FamilyId=FF84BCBE-D1E5-4402-8CE4-F8D9966C79D0

Microsoft Windows XP 64-Bit Edition Version 2003:
http://www.microsoft.com/downloads/details.aspx?FamilyId=AB91C7FF-2547-455E-9A6D-82B09373495F

Microsoft Windows Server 2003:
http://www.microsoft.com/downloads/details.aspx?FamilyId=5C60CA12-0045-42B7-9F2A-6D433DEDC105&
        
Microsoft Windows Server 2003 64-Bit Edition:
http://www.microsoft.com/downloads/details.aspx?FamilyId=AB91C7FF-2547-455E-9A6D-82B09373495F

PROVIDED AND/OR DISCOVERED BY:
Yorick Koster and Roozbeh Afrasiabi

ORIGINAL ADVISORY:
MS04-037 (KB841356):
http://www.microsoft.com/technet/security/bulletin/MS04-037.mspx

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