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Date: Wed, 20 Jul 2011 04:28:58 +0400
From: Solar Designer <>
Subject: cluts memcpy() test

Luka, Rich -

It'd be nice for cluts to detect issues like this:

Maybe it already does?

"... an attacker controllable length value is used to calculate the jump
table pointer index in the optimized copy function. Setting the length
value to a negative number will cause a jmp instruction to be skipped
due to an signedness vulnerbility, resulting in attacker supplied value
being used to calculate the location of a jump table function, resulting
in malicious code execution."


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