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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel VFS Lookup Bug Lets Local Users Deny Service
SecurityTracker Alert ID:  1020739
SecurityTracker URL:  http://securitytracker.com/id/1020739
CVE Reference:   CVE-2008-3275   (Links to External Site)
Updated:  Oct 20 2008
Original Entry Date:  Aug 25 2008
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): prior to 2.6.25.15
Description:   A vulnerability was reported in the Linux Kernel. A local user can cause denial of service conditions.

A VFS lookup can create a child dentry for a directory that has been deleted, causing the UBIFS orphan area to fill up and overflow. A local user can exploit this to cause denial of service conditions.

The vulnerability resides in 'fs/namei.c'.

Zoltan Sogor reported this vulnerability.

Impact:   A local user can cause denial of service conditions on the target system.
Solution:   The vendor has issued a fix (2.4.36.8, 2.6.25.15).

The vendor's advisory is available at:

http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.36.8
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.15

Vendor URL:  www.kernel.org/ (Links to External Site)
Cause:   Resource error

Message History:   This archive entry has one or more follow-up message(s) listed below.
Sep 24 2008 (Red Hat Issues Fix) Linux Kernel VFS Lookup Bug Lets Local Users Deny Service
Red Hat has released a fix for Red Hat Enterprise Linux 5.
Oct 8 2008 (Red Hat Issues Fix) Linux Kernel VFS Lookup Bug Lets Local Users Deny Service
Red Hat has released a fix for Red Hat Enterprise MRG.
Dec 17 2008 (Red Hat Issues Fix) Linux Kernel VFS Lookup Bug Lets Local Users Deny Service
Red Hat has released a fix for Red Hat Enterprise Linux 3.
Jan 5 2009 (Red Hat Issues Fix) Linux Kernel VFS Lookup Bug Lets Local Users Deny Service
Red Hat has released a fix for Red Hat Enterprise Linux 2.1.
Jan 8 2009 (Red Hat Issues Fix) Linux Kernel VFS Lookup Bug Lets Local Users Deny Service
Red Hat has released a fix for Red Hat Enterprise Linux 2.1 running on 32-bit architectures.
Jan 14 2009 (Red Hat Issues Fix) Linux Kernel VFS Lookup Bug Lets Local Users Deny Service
Red Hat has released a fix for Red Hat Enterprise Linux 4.



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