some docs on buffer overflows on PPC:
http://www.xfocus.org/documents/200408/5.html
also:
"The independent data and instruction caches of the PowerPC processor can
cause a variety of problems with exploit and shellcode development."
source: http://www.uninformed.org/?v=1&a=1&t=txt by HD Moore
in short it's not quite as straightforward as it seems, but obviously
possible, and that has been one of the hindrences to people developing
attacks for the chip. unfortunately, there is no shortage of bugs to
exploit on most common PPC OSes (AIX, OS X mainly).
________
jose nazario, ph.d. [EMAIL PROTECTED]
http://monkey.org/~jose/ http://infosecdaily.net/
http://www.wormblog.com/
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