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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel fcntl_setlk() Race Condition May Let Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1019974
SecurityTracker URL:  http://securitytracker.com/id/1019974
CVE Reference:   CVE-2008-1669   (Links to External Site)
Date:  May 7 2008
Impact:   Root access via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2.6.25.2
Description:   A vulnerability was reported in the Linux Kernel. A local user can obtain elevated privileges on the target system.

A local user can exploit a race condition in 'locks.c' to gain re-ordered access to the descriptor table.

Alexander Viro reported this vulnerability.

Impact:   A local user can obtain elevated privileges on the target system.
Solution:   The vendor has issued a fixed version (2.6.25.2).

The vendor's advisory is available at:

http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.2

Vendor URL:  www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.2 (Links to External Site)
Cause:   State error

Message History:   This archive entry has one or more follow-up message(s) listed below.
May 7 2008 (Red Hat Issues Fix) Linux Kernel fcntl_setlk() Race Condition May Let Local Users Gain Elevated Privileges
Red Hat has released a fix for Red Hat Enterprise Linux 3.
May 7 2008 (Red Hat Issues Fix) Linux Kernel fcntl_setlk() Race Condition May Let Local Users Gain Elevated Privileges
Red Hat has released a fix for Red Hat Enterprise Linux 5.
May 7 2008 (Red Hat Issues Fix) Linux Kernel fcntl_setlk() Race Condition May Let Local Users Gain Elevated Privileges
Red Hat has released a fix for Red Hat Enterprise Linux 4.
Jul 29 2008 (VMware Issues Fix for ESX Server) Linux Kernel fcntl_setlk() Race Condition May Let Local Users Gain Elevated Privileges
VMware has issued a fix for VMware ESX Server 3.5.



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