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Category:   Application (Generic)  >   Xlock Vendors:   IBM
Xlock Buffer Overflow Lets Local Users Gain Root Privileges
SecurityTracker Alert ID:  1016923
SecurityTracker URL:
CVE Reference:   CVE-2006-5009   (Links to External Site)
Updated:  Jun 3 2008
Original Entry Date:  Sep 26 2006
Impact:   Execution of arbitrary code via local system, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  

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

A local user can trigger a buffer overflow to execute arbitrary code on the target system with root privileges.

A remote authenticated user may also be able to exploit this flaw.

The 'X11.apps.clients' fileset is affected.

Impact:   A local user can obtain root privileges on the target system.
Solution:   IBM has issued the following fixes:

APAR number for AIX 5.2.0: IY87943 (available)
APAR number for AIX 5.3.0: IY87894 (available approx. 10/04/06)

Interim fixes are available at:

Vendor URL: (Links to External Site)
Cause:   Boundary error
Underlying OS:  UNIX (AIX)
Underlying OS Comments:  5.2, 5.3

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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