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Hyper-V Security Update KB977894

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Apply this update or you may suffer a Denial-of-Service (DOS) attack.  An attacker must have valid logon credentials and be able to log on locally to a Hyper-V virtual machine to exploit this vulnerability. The vulnerability could not be exploited remotely or by anonymous users. This problem affects all installation types on both Windows Server 2008 and Windows Server 2008 R2.

A denial of service vulnerability exists in Hyper-V on Windows Server 2008 and Windows Server 2008 R2. The vulnerability is due to insufficient validation of specific sequences of machine instructions by Hyper-V. An attacker who successfully exploited this vulnerability could cause the affected Hyper-V system to stop responding. This would affect all virtual machines hosted by that system.

KB977894

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Written by IT Core

February 11, 2010 at 10:38 PM

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