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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel tc_fill_tclass() Discloses Potentially Sensitive Kernel Memory to Local Users
SecurityTracker Alert ID:  1023073
SecurityTracker URL:  http://securitytracker.com/id/1023073
CVE Reference:   CVE-2009-3228   (Links to External Site)
Date:  Oct 22 2009
Impact:   Disclosure of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.4.x prior to 2.4.37.6, and 2.6.x prior to 2.6.31-rc9
Description:   A vulnerability was reported in the Linux Kernel. A local user can obtain potentially sensitive information from kernel memory.

A local user can can exploit some uninitialized structures to obtain several bytes of kernel memory.

The vulnerability resides in the tc_fill_tclass() function in 'net/sched/sch_api.c'.

Impact:   A local user can obtain small portions of kernel memory.
Solution:   The vendor has issued a fix (2.4.37.6, 2.6.31-rc9).
Vendor URL:  www.kernel.org/ (Links to External Site)
Cause:   Access control error

Message History:   This archive entry has one or more follow-up message(s) listed below.
Oct 22 2009 (Red Hat Issues Fix) Linux Kernel tc_fill_tclass() Discloses Potentially Sensitive Kernel Memory to Local Users
Red Hat has released a fix for Red Hat Enterprise Linux 4.
Nov 4 2009 (Red Hat Issues Fix) Linux Kernel tc_fill_tclass() Discloses Potentially Sensitive Kernel Memory to Local Users
Red Hat has issued a fix for Red Hat Enterprise MRG 1.1.
Nov 4 2009 (Red Hat Issues Fix) Linux Kernel tc_fill_tclass() Discloses Potentially Sensitive Kernel Memory to Local Users
Red Hat has issued a fix for Red Hat Enterprise Linux 5.



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