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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel Bluetooth 'l2cap_conninfo' and 'rfcomm_conninfo' Initialization Flaw Lets Local Users Obtain Kernel Memory Contents
SecurityTracker Alert ID:  1025778
SecurityTracker URL:  http://securitytracker.com/id/1025778
CVE Reference:   CVE-2011-2492   (Links to External Site)
Date:  Jul 15 2011
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in the Linux Kernel. A local user can obtain information from kernel memory.

The Bluetooth 'cinfo' structures 'l2cap_conninfo' and 'rfcomm_conninfo' copy one byte of uninitialized memory from the kernel stack to user-space. A local user can obtain information from kernel memory.

Marek Kroemeke and Filip Palian reported this vulnerability.

Impact:   A local user can obtain information from kernel memory on the target system.
Solution:   The vendor has issued a source code fix, available at:

http://git.kernel.org/linus/8d03e971cf403305217b8e62db3a2e5ad2d6263f

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.
Jul 15 2011 (Red Hat Issues Fix) Linux Kernel Bluetooth 'l2cap_conninfo' and 'rfcomm_conninfo' Initialization Flaw Lets Local Users Obtain Kernel Memory Contents
Red Hat has issued a fix for Red Hat Enterprise Linux 5.
Sep 12 2011 (Red Hat Issues Fix) Linux Kernel Bluetooth 'l2cap_conninfo' and 'rfcomm_conninfo' Initialization Flaw Lets Local Users Obtain Kernel Memory Contents
Red Hat has issued a fix for Red Hat Enterprise MRG 2.0.



 Source Message Contents



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