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Difference between revisions of "DEP"
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| − | <b>D</b>ata <b>E</b>xecution <b>P</b>revention. | + | <b>D</b>ata <b>E</b>xecution <b>P</b>revention is a hardware-layer feature provided by modern [[processor]]s. On Intel CPU's, this is called the '''NX bit''', and on AMD CPU's, this is called the '''XD bit'''. |
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Microsoft's Windows XP SP2 Operating System was Microsoft's first real attempt at data execution prevention. While the attempt was in fact a feeble one, it laid the ground work for later innovations, for example [[ASLR]], or [[ASLR|Address Space Layout Randomization]] employed by Microsoft's Windows Vista Operating System. | Microsoft's Windows XP SP2 Operating System was Microsoft's first real attempt at data execution prevention. While the attempt was in fact a feeble one, it laid the ground work for later innovations, for example [[ASLR]], or [[ASLR|Address Space Layout Randomization]] employed by Microsoft's Windows Vista Operating System. | ||
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{{countermeasures}} | {{countermeasures}} | ||
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Revision as of 03:38, 19 November 2012
Data Execution Prevention is a hardware-layer feature provided by modern processors. On Intel CPU's, this is called the NX bit, and on AMD CPU's, this is called the XD bit.
