bugtraq - Re: Linux kernel ELF core dump privilege elevation

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Date: Fri, 13 May 2005 11:10:59 +0100
From: Pedro Venda <pjvenda@...akis.dhis.org>
To: bugtraq@...urityfocus.com
Cc: antoine <antoine@...afix.co.uk>, security@...c.pl
Subject: Re: Linux kernel ELF core dump privilege elevation

On Thursday 12 May 2005 02:46, antoine wrote:
> Paul,
>
> I failed to crash any of my test machines, x86_86 based systems get the
> same result as reported by Bruno Lustosa (segfaults), x86 system exit
> after printing ".. to crash" as do UML x86 systems. SELinux exits with:
> "[+] phase 2, <RET> to crash Killed" but interestingly do not cause any
> audit event.

I failed to crash any of my test machines too. my laptop, a test server and 
two other workstations core dumped but no crashes.

pax+gesecurity boxes also report "[+] phase 2, <RET> to crash Killed", but 
also no log entries show up about segmentation violations.

I assume that, if the tool doesn't generate the core dump, it isn't calling 
the bugged kernel function, is that right?

regards,
pedro venda.
-- 

Pedro João Lopes Venda
email: pjvenda < at > arrakis.dhis.org
http://arrakis.dhis.org

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