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Category:   Application (E-mail Client)  >   Microsoft Outlook Vendors:   Microsoft
Microsoft Outlook Buffer Overflow in Processing TNEF Messages Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1015461
SecurityTracker URL:
CVE Reference:   CVE-2006-0002   (Links to External Site)
Date:  Jan 10 2006
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2000, 2002, 2003
Description:   A vulnerability was reported in Microsoft Outlook. A remote user can cause arbitrary code to be executed on the target user's system.

The software does not properly decode Transport Neutral Encapsulation Format (TNEF) MIME attachments. A remote user can send a specially crafted TNEF message that, when previewed or opened by the target user, will trigger a buffer overflow and execute arbitrary code with the privileges of the target user.

No user interaction is required.

Microsoft credits John Heasman and Mark Litchfield of NGS Software with reporting this vulnerability.

Impact:   A remote user can cause arbitrary code to be executed on the target user's system with the privileges of the target user.
Solution:   The vendor has issued the following fixes [including fixes for Exchange, which is also affected]:

Microsoft Outlook 2000:

Microsoft Office 2000 MultiLanguage Packs:

Microsoft Outlook 2000 English MultiLanguage Packs:

Microsoft Outlook 2002:

Microsoft Office XP Multilingual User Interface Packs:

Microsoft Outlook 2003:

Microsoft Office 2003 Multilingual User Interface Packs:

Microsoft Office 2003 Language Interface Packs:

Microsoft Exchange Server 5.0 Service Pack 2:

Microsoft Exchange Server 5.5 Service Pack 4:

Microsoft Exchange 2000 Server Pack 3 with the Exchange 2000 Post-Service Pack 3 Update Rollup of August 2004:

A restart is not generally required.

Vendor URL: (Links to External Site)
Cause:   Boundary error
Underlying OS:   Windows (Any)

Message History:   None.

 Source Message Contents

Date:  Tue, 10 Jan 2006 15:13:04 -0500
Subject:  Vulnerability in TNEF Decoding in Microsoft Outlook and Microsoft Exchange Could Allow Remote Code Execution (902412)


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