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Category:   Application (E-mail Client)  >   Microsoft Outlook Express Vendors:   Microsoft
Microsoft Outlook Express Bug in Processing NNTP Responses Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1018786
SecurityTracker URL:  http://securitytracker.com/id/1018786
CVE Reference:   CVE-2007-3897   (Links to External Site)
Updated:  Oct 11 2007
Original Entry Date:  Oct 9 2007
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5.5 SP2, 6, 6 SP1
Description:   A vulnerability was reported in Microsoft Outlook Express. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create specially crafted HTML that, when loaded by the target user, will trigger an error in the processing of NNTP responses and execute arbitrary code on the target system. The code will run with the privileges of the target user.

Greg MacManus of VeriSign iDefense Labs reported this vulnerability.

Impact:   A remote user can create HTML that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued the following fixes:

Microsoft Windows 2000 Service Pack 4 - Outlook Express 5.5 Service Pack 2:

http://www.microsoft.com/downloads/details.aspx?FamilyId=5AA009C9-4EDC-4F34-989B-0493549649E8

Microsoft Windows 2000 Service Pack 4 - Outlook Express 6 Service Pack 1:

http://www.microsoft.com/downloads/details.aspx?FamilyId=b537115d-611c-4486-960c-08d2df450579

Windows XP Service Pack 2 - Microsoft Outlook Express 6:

http://www.microsoft.com/downloads/details.aspx?FamilyId=3ed7f466-78c7-4251-ba24-8ae71ad54e18

Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2 -Microsoft Outlook Express 6:

http://www.microsoft.com/downloads/details.aspx?FamilyId=6468a552-2194-4866-97d5-ff77ae205eea

Windows Server 2003 Service Pack 1 - Microsoft Outlook Express 6:

http://www.microsoft.com/downloads/details.aspx?FamilyId=708926e4-f8af-4533-8747-22d6536ebd66

Windows Server 2003 Service Pack 2 - Microsoft Outlook Express 6:

http://www.microsoft.com/downloads/details.aspx?FamilyId=708926e4-f8af-4533-8747-22d6536ebd66

Windows Server 2003 x64 Edition - Microsoft Outlook Express 6:

http://www.microsoft.com/downloads/details.aspx?FamilyId=26720f5a-d7e9-44b9-9330-2e9faa4af0d9

Windows Server 2003 x64 Edition Service Pack 2 - Microsoft Outlook Express 6:

http://www.microsoft.com/downloads/details.aspx?FamilyId=26720f5a-d7e9-44b9-9330-2e9faa4af0d9

Windows Server 2003 with SP1 for Itanium-based Systems - Microsoft Outlook Express 6:

http://www.microsoft.com/downloads/details.aspx?FamilyId=a8844fbb-5b2c-41f3-80f1-dce563aa7cb7

Windows Server 2003 with SP2 for Itanium-based Systems - Microsoft Outlook Express 6:

http://www.microsoft.com/downloads/details.aspx?FamilyId=a8844fbb-5b2c-41f3-80f1-dce563aa7cb7

A restart is not required.

The Microsoft advisory is available at:

http://www.microsoft.com/technet/security/bulletin/ms07-056.mspx

Vendor URL:  www.microsoft.com/technet/security/bulletin/ms07-056.mspx (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (2000), Windows (2003), Windows (Vista), Windows (XP)

Message History:   None.


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