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[Full-disclosure] Linux Kernel SCTP Privilege Elevation Vulnerability

Date: Tue Aug 22 2006 - 17:29:26 CDT


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

Linux Kernel SCTP Privilege Elevation Vulnerability


* 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


* 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:


* 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
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McAfee, Inc. and McAfee Avert Labs are registered Trademarks of McAfee,
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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
McAfee Avert Labs Research Blog <http://www.avertlabs.com/research/blog>

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