Re: Stack growing and buffer overflows

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• In reply to: Felipe Alfaro Solana: "Stack growing and buffer overflows"
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On Tue, 11 March 2003 00:00:12 +0100, Felipe Alfaro Solana wrote:
>
> on x86, the stack grows downwards (from higher memory addresses to
> lower memory addresses). This makes buffer overflows attacks easy to
> exploit: if a function uses strcpy() instead of strncpy() to copy
> data [...]
>
> However, what would happen if the stack was implemented to grow
> upwards [...]

Stack overflows by mistake would go unnoticed, bad.
Stakc overflows in order to gain root privileges take only little more
effort, no change.

Nothing gained, something lost.

Jörn

-- 
Geld macht nicht glücklich.
Glück macht nicht satt.
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• Next message: Martin Schwidefsky: "Re: [PATCH][COMPAT] compat_sys_fcntl{,64} 1/9 Generic part"
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