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Category:   Application (Security)  >   PaX Vendors:   pax.grsecurity.net
PaX expand_stack() Lets Local Users Gain Root Privileges
SecurityTracker Alert ID:  1017509
SecurityTracker URL:  http://securitytracker.com/id/1017509
CVE Reference:   CVE-2007-0257   (Links to External Site)
Updated:  May 19 2008
Original Entry Date:  Jan 12 2007
Impact:   Root access via local system


Description:   A vulnerability was reported in PaX. A local user can obtain root privileges on the target system.

A local user can exploit a flaw in expand_stack() to obtain root privileges on the target system.

The original advisory is available at:

http://www.digitalarmaments.com/pre2007-00018659.html

Impact:   A local user can obtain root privileges on the target system.
Solution:   No solution was available at the time of this entry.
Vendor URL:  pax.grsecurity.net/ (Links to External Site)
Cause:   Not specified
Underlying OS:   Linux (Any)

Message History:   None.


 Source Message Contents

Date:  11 Jan 2007 21:10:21 -0000
Subject:  Digital Armaments Security Pre-Advisory 11.01.2007: Grsecurity

Digital Armaments pre-advisory is 01.10.2007
http://www.digitalarmaments.com/pre2007-00018659.html

Digital Armaments realease pre-advisory of vulnerabilties and exploit avaiable only to Platinum Subscriptors. 
The full-advisory will might be released to the public after 6 months.

I. Background

grsecurity is an innovative approach to security utilizing a multi-layered detection, prevention, and containment model. It is licensed
 under the GPL.

For further information or detail about the software you can refer to the vendor's homepage:

http://www.grsecurity.net/


II. Problem Description

A vulnerability exist in expand_stack() of grsecurity patch. This vulnerability is exploitable only locally.


III. Impact analysis

Successful exploitation allow an attacker to obtain local root privileges. The impact is high, due to grsecurity should prevent any
 form of code execution and privilege escalation. A working exploit is available.


IV. Credit

Anonymous.

Get paid and get stocks by vulnerability submission
http://www.digitalarmaments.com/contribute.html

V. Legal Notices

Copyright  2007 Digital Armaments Inc..

Redistribution of this alert electronically is allowed. It should not be edited in any way. Reprint the whole is allowed, partial
 reprint is not permitted. For any other request please email customerservice@digitalarmaments.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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