full-disclosure - Linux Kernel SCTP Privilege Elevation Vulnerability

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Date: Tue, 22 Aug 2006 17:29:26 -0500
From: <David_Marcus@...fee.com>
To: <full-disclosure@...ts.grok.org.uk>
Cc: Monty_Ijzerman@...fee.com, Wei_Wang@...fee.com, Zheng_Bu@...fee.com,
	John_Viega@...fee.com
Subject: Linux Kernel SCTP Privilege Elevation
	Vulnerability

________________________________________________________________________
_______

McAfee, Inc.
McAfee(r) Avert(r) Labs Security Advisory
Public Release Date: 2006-08-22

Linux Kernel SCTP Privilege Elevation Vulnerability

CVE-2006-3745
________________________________________________________________________
_______

*	Synopsis

The Linux kernel is susceptible to a locally exploitable flaw which may
allow local users to gain root privileges and execute arbitrary code at
kernel privilege level.
________________________________________________________________________
_______

*	Vulnerable System or Application

Linux Kernel Versions: 2.4.23--2.4.32, 2.6 up to and including 2.6.17.7

________________________________________________________________________
_______

*	Vulnerability Information

A locally exploitable flaw has been found in the Linux sctp module
sctp_make_abort_user function that allows local users to gain root
privileges and also execute arbitrary code at kernel privilege level.

________________________________________________________________________
_______

*	Resolution

The Linux Kernel Archives has released a fix for this vulnerability.
Complete instructions for automatically updating kernel modules can be
downloaded at the following site:
http://www.kernel.org/git/?p=linux/kernel/git/stable/linux-2.6.17.y.git;
a=commit;h=96ec9da385cf72c5f775e5f163420ea92e66ded2

________________________________________________________________________
_______

*	Credits

This vulnerability was discovered by Wei Wang of McAfee Avert Labs.

________________________________________________________________________
_______

*	Legal Notice

Copyright (C) 2006 McAfee, Inc.
The information contained within this advisory is provided for the
convenience of McAfee's customers, and may be redistributed provided
that no fee is charged for distribution and that the advisory is not
modified in any way. McAfee makes no representations or warranties
regarding the accuracy of the information referenced in this document,
or the suitability of that information for your purposes.

McAfee, Inc. and McAfee Avert Labs are registered Trademarks of McAfee,
Inc. and/or its affiliated companies in the United States and/or other
Countries.  All other registered and unregistered trademarks in this
document are the sole property of their respective owners.

Best regards,

Dave Marcus, B.A., CCNA, MCSE
Security Research and Communications Manager
McAfee(r) Avert(r) Labs
(443) 321-3771 Office
(443) 668-0048 Mobile
McAfee Threat Center
<http://www.mcafee.com/us/threat_center/default.asp> 
McAfee Avert Labs Research Blog <http://www.avertlabs.com/research/blog>

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