Friday, May 13, 2005

Intel Hypterthreading leads to security bug

Hyper-Threading considered harmful

This is an interesting case where a hardware flaw can be used to subvert software security.

I find it fun to ask vendors who create their own OS and processors for appliances how they ensure things such as memory page protection. I get a lot of blank stares. They often focus entirely on the macro-level security in their software and have spent little to no time addressing the basic hardware and OS-level security issues that are taken for granted by software authors.

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