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Attacking the Vista Heap - 2008

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<strong>Heap</strong> Spray I<br />

• <strong>Heap</strong> base randomized, segments and<br />

large chunks not<br />

• Linearly allocated in first available region<br />

• But still affected by random heap base<br />

• <strong>Heap</strong> spray used to position data statically<br />

– Spray small chunks within a single heap<br />

– Or allocate large chunk(s)

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