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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel vmsplice() Memory Dereference Bug Lets Local Users Gain Root Privileges
SecurityTracker Alert ID:  1019393
SecurityTracker URL:  http://securitytracker.com/id/1019393
CVE Reference:   CVE-2008-0600   (Links to External Site)
Date:  Feb 12 2008
Impact:   Execution of arbitrary code via local system, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.6.23 - 2.6.24
Description:   A vulnerability was reported in Linux Kernel. A local user can obtain root privileges on the target system.

A local user can trigger a flaw in the vmsplice_to_user() function in 'fs/splice.c' to trigger a memory dereference error and execute arbitrary code on the target system.

A local user can also exploit a flaw in the copy_from_user_mmap_sem() function to read arbitrary kernel memory locations.

Wojciech Purczynski reported this vulnerability.

Impact:   A local user can obtain root privileges on the target system.
Solution:   The vendor has issued a source code fix.
Vendor URL:  www.kernel.org/ (Links to External Site)
Cause:   Access control error
Underlying OS:  

Message History:   This archive entry has one or more follow-up message(s) listed below.
Feb 12 2008 (Red Hat Issues Fix) Linux Kernel vmsplice() Memory Dereference Bug Lets Local Users Gain Root Privileges   (bugzilla@redhat.com)
Red Hat has released a fix for Red Hat Enterprise Linux 5.



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