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Re: Buffer Overflow


From: Greg Wooledge
Subject: Re: Buffer Overflow
Date: Tue, 12 Apr 2022 16:33:01 -0400

On Tue, Apr 12, 2022 at 02:45:15PM -0400, Sergio Fuentes wrote:
> Please, run the following 3 commands to reproduce the bug:
> 
> echo '. ./poc.sh' > poc.sh
> chmod +x poc.sh
> bash -c './poc.sh'

You're performing an infinite recursion.  Eventually, you'll overflow
the stack, and bash will crash.  This is to be expected.  You'd get the
same result if you wrote a C program with a recursive function that
calls itself infinitely.



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