From owner-freebsd-security  Sun Jul  8 18: 7: 4 2001
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Date: Mon, 9 Jul 2001 03:07:34 +0200 (CEST)
From: solwar <solwar@email.si>
X-X-Sender:  <solwar@SOLos.tw>
To: alexus <ml@db.nexgen.com>
Cc: <freebsd-security@FreeBSD.ORG>
Subject: Re: non-exec stack
In-Reply-To: <001701c107f1$b3881fc0$97625c42@alexus>
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Most buffer overflow exploits are based on overwriting a function's return
address on the stack to point to some arbitrary code, which is also put
onto the stack.  If the stack area is non-executable, buffer overflow
vulnerabilities become harder to exploit.


On Sun, 8 Jul 2001, alexus wrote:

> what do you mean by non-exec?
>
> ----- Original Message -----
> From: "solwar" <solwar@email.si>
> To: <freebsd-security@FreeBSD.ORG>
> Sent: Sunday, July 08, 2001 5:03 PM
> Subject: non-exec stack
>
>
> > Hello,
> > Is there is any non-exec stack kernel patch available for FreeBSD?
> > (like linux's openwall patch from solar designer, www.openwall.com)
> > tnx
> >
> >
> >
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-security" in the body of the message
> >
>
>


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