full-disclosure - "Advances in Security" in the Linux Kernel and RedHat idiocy

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From: lcamtuf at ghettot.org (Michal Zalewski)
Subject: "Advances in Security" in the Linux Kernel
	and RedHat idiocy

On Thu, 27 Jan 2005, Brad Spengler wrote:

> I guess anyone who thinks that taking a hardcoded exploit and running it
> 256 times would always result in a successful exploit is stupid.

It would not always result in a successful exploitation; just as flipping
the coin twice is not a guarantee of getting tails once.

Other than that, the amount of randomization is indeed puny; but then,
even 32-bit randomization is a good defense only in certain situations,
and often, can be defeated with some time, aided by luck or a decent
NOP-equivalent sled.

-- 
------------------------- bash$ :(){ :|:&};: --
 Michal Zalewski * [http://lcamtuf.coredump.cx]
    Did you know that clones never use mirrors?
--------------------------- 2005-01-27 20:31 --

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