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Category:   Application (Game)  >   LBreakout2 Vendors:   Speck, Michael
LBreakout2 Buffer Overflow in HOME Environment May Let Local Users Obtain 'Games' Group Privileges
SecurityTracker Alert ID:  1009158
SecurityTracker URL:  http://securitytracker.com/id/1009158
CVE Reference:   CVE-2004-0158   (Links to External Site)
Date:  Feb 22 2004
Impact:   Execution of arbitrary code via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2.4beta-2
Description:   A vulnerability was reported in LBreakout2 in the processing of the HOME environment variable. A local user can execute arbitrary code with elevated privileges.

It is reported that the software fails to perform proper bounds checking on the HOME environment variable. A local user can reportedly set the HOME environment to a specially crafted value to execute arbitrary code on the target system.

One some systems, the application is configured with 'games' group privileges, allowing the local user to obtain elevated ('games') group privileges.

The 'editor.c', 'theme.c', 'manager.c', 'config.c', 'game.c', 'levels.c', and 'main.c' files are reportedly affected.

[Editor's note: The security flaw was reported in November 2002 in the ChangeLog. Later, the flaw was reported by Debian in February 2004 with credit to Ulf Harnhammar, at which time the CVE number CVE-2004-0158 was assigned.]

Impact:   A local user can execute arbitrary code to obtain 'games' group privileges.
Solution:   The vendor issued a fixed version (2.4beta-2) in November 2002. The fixed version (and newer versions) are available at:

http://sourceforge.net/project/showfiles.php?group_id=9301&package_id=30379

Vendor URL:  lgames.sourceforge.net/index.php?project=LBreakout2 (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Feb 22 2004 (Debian Issues Fix) LBreakout2 Buffer Overflow in HOME Environment May Let Local Users Obtain 'Games' Group Privileges
Debian has released a fix.



 Source Message Contents

Subject:  CVE-2004-0158


CVE: CAN-2004-0158

Debian reported that Ulf Harnhammar discovered a vulnerability in lbreakout2.  The 
software reportedly fails to perform proper bounds checking on the HOME environment variables.

A local user can gain 'games' group privileges.

The 'editor.c', 'theme.c', 'manager.c', 'config.c', 'game.c', 'levels.c', and 'main.c' 
files are reportedly affected.

http://lgames.sourceforge.net/index.php?project=LBreakout2

 
 


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