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             AUSCERT External Security Bulletin Redistribution

                        ESB-2009.0243 -- [Solaris]
               Security Vulnerability in the Solaris keysock
                               16 March 2009

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

Product:              Solaris 10
                      OpenSolaris
Publisher:            Sun Microsystems
Operating System:     Solaris
Impact:               Denial of Service
Access:               Existing Account

Original Bulletin:    
  http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-253568-1

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Solution Type: Sun Alert
Solution  253568 :   Security Vulnerability in the Solaris keysock
Kernel Module may Lead to a System Panic          
Bug ID: 6797746

Product
Solaris 10 Operating System
OpenSolaris

Date of Resolved Release: 13-Mar-2009

SA Document Body
Security vulnerability in the Solaris keysock kernel module may lead to a 
system panic

1. Impact

A security vulnerability in the Solaris 10 keysock kernel module may
allow local users with sufficient privileges to create PF_KEY (see
pf_key(7P)) sockets to be able to cause a system panic thereby
resulting in a Denial of Service (DoS) to the system as a whole.

2. Contributing Factors
This issue can occur in the following releases:
SPARC Platform
     * Solaris 10 without patch 141008-01
     * OpenSolaris based upon builds snv_01 through snv_108

x86 Platform
     * Solaris 10 without patch 141009-01
     * OpenSolaris based upon builds snv_01 through snv_108

Note: OpenSolaris distributions may include additional bug fixes above
and beyond the build from which it was derived.  To determine the base
build of OpenSolaris, the following command can be used:
   $ uname -v
   snv_86

3. Symptoms

If the described issue occurs, the system may panic with a stack trace
similar to the following:
   vpanic()
   mutex_vector_enter()
   keysock_opt_set()
   svr4_optcom_req()
   keysock_wput_other()
   putnext()
   strput()
   kstrputmsg()
   sotpi_setsockopt()
   setsockopt()
   syscall_trap32()

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:
SPARC Platform
     * Solaris 10 with patch 141008-01 or later
     * OpenSolaris based upon builds snv_109 or later

x86 Platform
     * Solaris 10 with patch 141009-01 or later
     * OpenSolaris based upon builds snv_109 or later

For more information on Security Sun Alerts, see Technical
Instruction ID 213557.
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 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved

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