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iDEFENSE Security Advisory 2006-02-07.5

iDEFENSE Security Advisory 2006-02-07.5
Posted Feb 8, 2006
Authored by iDefense Labs | Site idefense.com

iDefense Security Advisory 02.07.06 - Local exploitation of a denial of service vulnerability in QNX Software Systems QNX Realtime Operating System (RTOS) allows attackers to crash the operating system. iDefense has confirmed the existence of this vulnerability in QNX RTOS version 6.3.0. Version 6.0 was also tested and found to not be vulnerable.

tags | advisory, denial of service, local
SHA-256 | ccb9b46bd5f2b099f7a2bee5dd441ced33e5e0458920f64abac0088da29a8d99

iDEFENSE Security Advisory 2006-02-07.5

Change Mirror Download
QNX RTOS 6.3.0 Local Denial of Service Vulnerability

iDefense Security Advisory 02.07.06
http://www.idefense.com/intelligence/vulnerabilities/display.php?id=386
February 7, 2006

I. BACKGROUND

QNX Software Systems Ltd.'s Neutrino RTOS (QNX) is a real-time operating
system designed for use in embedded systems. More information is
available at:

http://www.qnx.com/products/rtos/

II. DESCRIPTION

Local exploitation of a denial of service vulnerability in QNX Software
Systems QNX Realtime Operating System (RTOS) allows attackers to crash
the operating system.

The problem specifically exists when a local user executes the following
command:

echo -e "break *0xb032d59f\nr\ncont\ncont" | gdb gdb

Executing the above command causes the operating system to become
unresponsive and hang.

III. ANALYSIS

Successful exploitation allows local attackers to crash the affected
operating system.

IV. DETECTION

iDefense has confirmed the existence of this vulnerability in QNX RTOS
version 6.3.0. Version 6.0 was also tested and found to not be
vulnerable.

V. WORKAROUND

Remove the GNU Debugger (GDB) from affected systems.

VI. VENDOR RESPONSE

The vendor has not responded to communication regarding this issue.

VII. CVE INFORMATION

A Mitre Corp. Common Vulnerabilities and Exposures (CVE) number has not
been assigned yet.

VIII. DISCLOSURE TIMELINE

12/23/2004 Initial vendor notification
02/07/2006 Public disclosure

IX. CREDIT

The discoverer of this vulnerability wishes to remain anonymous.

Get paid for vulnerability research
http://www.idefense.com/poi/teams/vcp.jsp

Free tools, research and upcoming events
http://labs.idefense.com

X. LEGAL NOTICES

Copyright © 2006 iDefense, Inc.

Permission is granted for the redistribution of this alert
electronically. It may not be edited in any way without the express
written consent of iDefense. If you wish to reprint the whole or any
part of this alert in any other medium other than electronically, please
email customerservice@idefense.com for permission.

Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct, indirect,
or consequential loss or damage arising from use of, or reliance on,
this information.
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