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Message-ID: <1df1788c0610031425p4f1ca206teb05590a91eb7659@mail.gmail.com>
Date:	Tue, 3 Oct 2006 18:25:07 -0300
From:	"Bráulio Oliveira" <brauliobo@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Fwd: Registration Weakness in Linux Kernel's Binary formats

Just forwarding....

---------- Forwarded message ----------
From: SHELLCODE Security Research <GoodFellas@...llcode.com.ar>
Date: Oct 3, 2006 4:13 PM
Subject: Registration Weakness in Linux Kernel's Binary formats
To: undisclosed-recipients


Hello,
The present document aims to demonstrate a design weakness found in the
handling of simply
linked   lists   used   to   register   binary   formats   handled   by
Linux   kernel,   and   affects   all   the   kernel families
(2.0/2.2/2.4/2.6), allowing the insertion of infection modules in
kernel­ space that can be used by malicious users to create infection
tools, for example rootkits.

POC, details and proposed solution at:
English version: http://www.shellcode.com.ar/docz/binfmt-en.pdf
Spanish version: http://www.shellcode.com.ar/docz/binfmt-es.pdf

regards,
--
SHELLCODE Security Research TEAM
GoodFellas@...llcode.com.ar
http://www.shellcode.com.ar


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