Microsoft Windows Vista DHCP Remote Denial Of Service Vulnerability



Date Discovered

February 12, 2008


Microsoft Windows Vista is prone to a remote denial-of-service vulnerability because it fails to adequately handle specially crafted TCP/IP traffic. Attackers can exploit this issue to cause affected computers to stop responding and to automatically restart. Successful attacks will deny service to legitimate users.

Technologies Affected

  • Microsoft Windows Vista
  • Microsoft Windows Vista Beta 1
  • Microsoft Windows Vista Business 64-bit edition
  • Microsoft Windows Vista Business
  • Microsoft Windows Vista Enterprise 64-bit edition
  • Microsoft Windows Vista Enterprise
  • Microsoft Windows Vista Home Basic 64-bit edition
  • Microsoft Windows Vista Home Basic
  • Microsoft Windows Vista Home Premium 64-bit edition
  • Microsoft Windows Vista Home Premium
  • Microsoft Windows Vista Ultimate 64-bit edition
  • Microsoft Windows Vista Ultimate
  • Microsoft Windows Vista beta 2
  • Microsoft Windows Vista beta
  • Microsoft Windows Vista x64 Edition


Block external access at the network boundary, unless external parties require service.
Filter access to the affected computer at the network boundary if global access isn't needed. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This may indicate exploit attempts or activity that results from successful exploits.

The vendor released an advisory and fixes to address this issue. Please see the references for more information.



The vendor credits Tomas Potok, Martin Dominik, Martin Luptak, and Eva Juhasova of Whitestein for reporting this issue.

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