Microsoft Visual Studio .NET msdds.dll Remote Code Execution Vulnerability



Date Discovered

August 17, 2005


Microsoft Visual Studio .NET is prone to a vulnerability that could allow remote arbitrary code execution. This is due to a buffer overflow that is exposed during COM object instantiation. The list of vulnerable packages has been updated to include applications suspected of installing the vulnerable msdds.dll library.

Technologies Affected

  • ATI Catalyst Driver
  • Avaya DefinityOne Media Servers
  • Avaya DefinityOne Media Servers R10
  • Avaya DefinityOne Media Servers R11
  • Avaya DefinityOne Media Servers R12
  • Avaya DefinityOne Media Servers R6
  • Avaya DefinityOne Media Servers R7
  • Avaya DefinityOne Media Servers R8
  • Avaya DefinityOne Media Servers R9
  • Avaya IP600 Media Servers
  • Avaya IP600 Media Servers R10
  • Avaya IP600 Media Servers R11
  • Avaya IP600 Media Servers R12
  • Avaya IP600 Media Servers R6
  • Avaya IP600 Media Servers R7
  • Avaya IP600 Media Servers R8
  • Avaya IP600 Media Servers R9
  • Avaya S3400 Message Application Server
  • Avaya S8100 Media Servers
  • Avaya S8100 Media Servers R10
  • Avaya S8100 Media Servers R11
  • Avaya S8100 Media Servers R12
  • Avaya S8100 Media Servers R6
  • Avaya S8100 Media Servers R7
  • Avaya S8100 Media Servers R8
  • Avaya S8100 Media Servers R9
  • Avaya Unified Communication Center
  • Microsoft .NET Framework 1.1
  • Microsoft .NET Framework 1.1
  • Microsoft .NET Framework 1.1 SP1
  • Microsoft .NET Framework 1.1 SP2
  • Microsoft .NET Framework 1.1 SP3
  • Microsoft Access 2003
  • Microsoft Internet Explorer 5.0
  • Microsoft Internet Explorer 5.0.1
  • Microsoft Internet Explorer 5.0.1 SP1
  • Microsoft Internet Explorer 5.0.1 SP2
  • Microsoft Internet Explorer 5.0.1 SP3
  • Microsoft Internet Explorer 5.0.1 SP4
  • Microsoft Internet Explorer 5.0.1 for Windows 2000
  • Microsoft Internet Explorer 5.5
  • Microsoft Internet Explorer 5.5 SP1
  • Microsoft Internet Explorer 5.5 SP2
  • Microsoft Internet Explorer 6.0
  • Microsoft Internet Explorer 6.0 SP1
  • Microsoft Internet Explorer 6.0 SP2 do not use
  • Microsoft Office 2000
  • Microsoft Office 2000 Chinese Version
  • Microsoft Office 2000 Japanese Version
  • Microsoft Office 2000 Korean Version
  • Microsoft Office 2000 SP1
  • Microsoft Office 2000 SP2
  • Microsoft Office 2000 SP3
  • Microsoft Office XP
  • Microsoft Office XP Developer Edition
  • Microsoft Office XP SP1
  • Microsoft Office XP SP2
  • Microsoft Office XP SP3
  • Microsoft Project 2000
  • Microsoft Project 2002
  • Microsoft Project 2002 SP1
  • Microsoft Project 2003 SP1
  • Microsoft Project 2003
  • Microsoft Project 98
  • Microsoft Visio 2000 Enterprise Edition
  • Microsoft Visio 2000 Enterprise Edition SR1
  • Microsoft Visio 2002
  • Microsoft Visio 2002 Professional SP2
  • Microsoft Visio 2002 SP1
  • Microsoft Visio 2002 SP2
  • Microsoft Visio 2002 Standard SP2
  • Microsoft Visio 2003 SP1
  • Microsoft Visio 2003
  • Microsoft Visio 2003 Professional
  • Microsoft Visio 2003 Standard
  • Microsoft Visio Professional 2002
  • Microsoft Visual Studio .NET 2002
  • Microsoft Visual Studio .NET 2003
  • Microsoft Visual Studio .NET 2003 Enterprise Architect
  • Microsoft Visual Studio .NET Academic Edition
  • Microsoft Visual Studio .NET Enterprise Architect Edition
  • Microsoft Visual Studio .NET Enterprise Developer Edition
  • Microsoft Visual Studio .NET Professional Edition
  • Microsoft Visual Studio .NET Trial Edition
  • Nortel Networks CallPilot 3.0.0
  • Nortel Networks CallPilot 4.0.0


Do not follow links provided by unknown or untrusted sources.
This vulnerability could be exploited through a Web browser or possibly through HTML email. Do not follow links provided by unknown sources.

Set web browser security to disable the execution of script code or active content.
Disabling scripting and active content in the Internet Zone may limit exposure to this and other vulnerabilities.

Implement multiple redundant layers of security.
Memory protection schemes such as non-executable stack/heap configurations and randomly mapped memory segments may complicate exploitation of memory corruption vulnerabilities.

Run all software as a nonprivileged user with minimal access rights.
Exploitation of this vulnerability would result in arbitrary code execution in the context of the application calling the vulnerable library. Perform all tasks as an unprivileged user with minimal access rights to limit the consequences of successful exploitation.

Microsoft has released a security advisory (906267) regarding this issue for Internet Explorer. Please see the referenced advisory for further information. Microsoft has updated security advisory (906267) to include more technical details and workarounds. Please see the referenced advisory for further information. Microsoft has released fixes to address supported version of the software. Fixes for Internet Explorer on Windows 98/98SE/ME may be obtained through Windows Update. Avaya has released advisory ASA-2005-214 to state which Avaya products are affected by The October 2005 release of Microsoft Windows security updates. Please see the referenced advisory for further information. Nortel Networks has released a technical support bulletin (2005006317) regarding this issue for CallPilot. Users are advised to contact Nortel for further information.


This issue was reported anonymously.

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