Re: What is exec-shield

[Vincent <pros-n-cons bak rr com>]

On Mon, 26 Jan 2004 15:52:25 -0700
Guy Fraser <guy incentre net> wrote:

> After fighting with prelink, I was finaly able to get wine working 
> again, by disabling exec-shield in prelink.
> 
> This is the first I have heard of it, and I have been working with Linux 
> since 95, and RHL since 97.
 It's new to Fedora
> 
> What is it for and why would it be wanted?

In short it provides protection against exploits specifically stack, buffer and
function pointer overflows. It is not a full solution to killing all shellcode
and exploits. But you wont take a significant performance hit so It's worth it.

This is a good thing, I hope you re-enable it.

#press relese
http://people.redhat.com/mingo/exec-shield/ANNOUNCE-exec-shield 
#very technical information
http://lists.debian.org/debian-devel/2003/debian-devel-200311/msg00090.html
The second link has tons of good info in its follow ups.

> 
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> Guy Fraser
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