Subject: NetBSD Security Note 20061214-1: Kernel memory leakage in firewire interface
To: None <>
From: NetBSD Security-Officer <>
List: tech-security
Date: 12/14/2006 22:14:24
Hash: SHA1

		NetBSD Security Note 20061214-1

Topic:	    Kernel memory leakage in firewire interface

A kernel memory disclosure bug has been found in the NetBSD firewire

This issue has been assigned CVE-2006-6013.

On the 15th of November 2006 a posting was made to a public list
which detailed a "NetBSD all versions FireWire IOCTL kernel integer 
overflow information disclousure."

The advisory listed "NetBSD all versions" as being affected.  Upon
further investigation this was found not to be the case and there
are a number of other details that should be taken into account
when trying to assess this issue:

* This issue impacts NetBSD-current before November 16 2006.  If
  you are running NetBSD-current sources after this date you have the
  fix included in the kernel.

* This issue impacts the NetBSD-4 branch before December 3, 2006.
  NetBSD 4.0_BETA2 contains the fix.

* No current NetBSD releases are impacted e.g. NetBSD 2* and NetBSD 3*.

* Although a complete list is not currently available we do not
  believe that all architectures are impacted by this bug.

* The fw nodes are not created by default in /dev in a NetBSD 

* When the fw* nodes are created using MAKEDEV, they are created with mode
  660 and ownership is set to root:operator.

We recommend that all users of NetBSD-current upgrade their sources
to after November 16 2006.  In addition to this all users of NetBSD-4
should update to sources after December 3 2006.

Thanks To

Joerg Sonnenberger
Martin Husemann
Quentin Garnier
Elad Efrat
Jaromir Dolecek
Manuel Bouyer 

More Information

Information about NetBSD and NetBSD security can be found at and

Copyright 2006, The NetBSD Foundation, Inc.  All Rights Reserved.
Redistribution permitted only in full, unmodified form.

$NetBSD: NetBSD-SN20061214-1.txt,v 1.1 2006/12/14 20:13:17 adrianp Exp $

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