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             AUSCERT External Security Bulletin Redistribution

                        ESB-2008.0171 -- [Solaris]
        Security Vulnerability in the vuidmice(7M) STREAMS Modules
                        May Lead to a System Panic
                             22 February 2008

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              Solaris 10 Operating System
                      Solaris 9 Operating System
Publisher:            Sun Microsystems
Operating System:     Solaris
Platform:             IA-32
Impact:               Denial of Service
Access:               Existing Account
CVE Names:            CVE-2008-0836

Revision History:     February 22 2008: Added CVE Number.
                      February 19 2008: Initial Release

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Product: Solaris 9 Operating System, Solaris 10 Operating System
Bug ID: 6575828
Date of Resolved Release: 06-FEB-2008

SA Document Body
A security vulnerability in the vuidmice STREAMS modules (vuidmice(7M))
  - see below for details

1. Impact

   A security vulnerability in the vuidmice STREAMS modules (vuidmice
   (7M)) may allow a local unprivileged user the ability to panic the
   system. This is a type of Denial of Service (DoS).


2. Contributing Factors

   This issue can occur in the following releases:

   x86 Platform

     * Solaris 9 without patch 117419-04 * Solaris 10 without patch
       127751-02

   Note 1: This issue does not affect Solaris on the SPARC platform.

   Note 2: This issue does not affect Solaris 8 on the x86 platform.

3. Symptoms

   If the described issue occurs, the system may panic with a panic
   string similar to the following:

     panic[cpu1]/thread=d2a35de0: BAD TRAP: type=e (#pf Page fault)
     rp=d2a35c80 addr=10 occurred in module "vuid3ps2" due to a NULL
     pointer dereference

   and a stack trace similar to the following:

     unix:die+a7 (e, d2a35c80, 10, 1) unix:trap+1058 (d2a35c80, 10,
     1) unix:cmntrap+9a (1b0, 0, d29f0160, d)
     vuid3ps2:vuidmice_handle_wheel_resolution_ioctl+158 (d29fdae0,
     d29f6420,) vuid3ps2:vuidmice_wput+20e (d29fdae0, d29f6420)
     unix:putnext+1b7 (d29fdae0, d29f6420) consms:consmslwserv+2d
     (d29fddd0) genunix:runservice+2a (d29fddd0) genunix:queue_service+30
     (d29fddd0, d2248f20,) genunix:stream_service+69 (d27409b8, 0,
     0, 0, ) genunix:taskq_d_thread+8a (d2248f20, 0) unix:thread_start+8
     ()

4. Workaround 

   There is no workaround for this issue. Please see the Resolution
   section below.

5. Resolution

   This issue is addressed in the following releases:

   x86 Platform

     * Solaris 9 with patch 117419-04 or later * Solaris 10 with
       patch 127751-02 or later

   For more information on Security Sun Alerts, see Sun InfoDoc 91209.

   This Sun Alert notification is being provided to you on an "AS IS"
   basis. This Sun Alert notification may contain information provided
   by third parties. The issues described in this Sun Alert notification
   may or may not impact your system(s). Sun makes no representations,
   warranties, or guarantees as to the information contained herein.
   ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT
   LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
   PURPOSE, OR NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING
   THIS DOCUMENT YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE
   FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL
   DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION
   CONTAINED HEREIN. This Sun Alert notification contains Sun proprietary
   and confidential information. It is being provided to you pursuant
   to the provisions of your agreement to purchase services from Sun,
   or, if you do not have such an agreement, the Sun.com Terms of Use.
   This Sun Alert notification may only be used for the purposes
   contemplated by these agreements.

   Copyright 2000-2008 Sun Microsystems, Inc., 4150 Network Circle,
   Santa Clara, CA 95054 U.S.A. All rights reserved.


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