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Category:   Application (Generic)  >   SystemTap Vendors:   SystemTap
SystemTap Buffer Overflow in __get_argv() May Let Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1023664
SecurityTracker URL:  http://securitytracker.com/id/1023664
CVE Reference:   CVE-2010-0411   (Links to External Site)
Date:  Mar 1 2010
Impact:   Denial of service via local system, Execution of arbitrary code via local system, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  

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

A local user can trigger a buffer overflow in __get_argv() to cause the target system to crash (if the calling script runs with root privileges) or potentially execute arbitrary code on the target system.

The __get_compat_argv() function is also affected.

Impact:   A local user may be able to obtain elevated privileges on the target system.
Solution:   The vendor has issued a fix, available at:

http://sourceware.org/git/gitweb.cgi?p=systemtap.git;a=commit;h=a2d399c87a642190f08ede63dc6fc434a5a8363a

Vendor URL:  sourceware.org/systemtap/ (Links to External Site)
Cause:   Boundary error
Underlying OS:   Linux (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Mar 1 2010 (Red Hat Issues Fix) SystemTap Buffer Overflow in __get_argv() May Let Local Users Gain Elevated Privileges   (bugzilla@redhat.com)
Red Hat has issued a fix for Red Hat Enterprise Linux 5.
Mar 1 2010 (Red Hat Issues Fix) SystemTap Buffer Overflow in __get_argv() May Let Local Users Gain Elevated Privileges   (bugzilla@redhat.com)
Red Hat has issued a fix for Red Hat Enterprise Linux 4.



 Source Message Contents

Date:  2010-02-04 18:02:28
Subject:  [oss-security] systemtap DoS issue (CVE-2010-0411)

Just a heads up that an issue in SystemTap was found where using the
__get_argv() function in tapset could result in a crash of the SystemTap
script that calls it (and syscall.execve) or, if it's running as root,
could lead to a hang/crash of the system running the script.

This flaw has been assigned CVE-2010-0411.  More details can be found
here:

https://bugzilla.redhat.com/show_bug.cgi?id=559719
http://sourceware.org/bugzilla/show_bug.cgi?id=11234

-- 
Vincent Danen / Red Hat Security Response Team 

 
 


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