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             AUSCERT External Security Bulletin Redistribution

               ESB-2004.0463 -- Sun Alert Notification 57598
         Security Vulnerability With Solaris Volume Manager (SVM)
                               20 July 2004

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

Product:                Solaris Volume Manager
Publisher:              Sun Microsystems
Operating System:       Solaris 9
Platform:               SPARC
                        IA-32
Impact:                 Denial of Service
Access Required:        Existing Account

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   DOCUMENT ID: 57598
   SYNOPSIS: Security Vulnerability With Solaris Volume Manager (SVM)
   DETAIL DESCRIPTION:
   
Sun(sm) Alert Notification

     * Sun Alert ID: 57598
     * Synopsis: Security Vulnerability With Solaris Volume Manager (SVM)
     * Category: Security
     * Product: Solaris, Solaris Volume Manager (SVM)
     * BugIDs: 5046783
     * Avoidance: Patch
     * State: Resolved
     * Date Released: 16-Jul-2004
     * Date Closed: 16-Jul-2004
     * Date Modified:
       
1. Impact

   A local unprivileged user may be able to panic Solaris 9 systems which
   have Solaris Volume Manager (SVM) devices configured. This is a type
   of Denial of Service (DoS) attack.
   
2. Contributing Factors

   This issue can occur in the following releases:
   
   SPARC Platform
     * Solaris 9 without patch 113073-13
       
   x86 Platform
     * Solaris 9 without patch 113994-22
       
   A system is only vulnerable to this issue if SVM devices are
   configured, which can be determined by running the metastat(1M)
   command. If SVM devices exist, output will be similar to the
   following:
    d0: Mirror
       Submirror 0: d10
 
State: Okay         
       Pass: 1
       Read option: roundrobin (default)
       Write option: parallel (default)
       Size: 4198392 blocks

    d10: Submirror of d0
 
State: Okay         
       Size: 4198392 blocks
       Stripe 0:
          Device     Start Block  Dbase State   Hot Spare
          c0t1d0s4          0     No    Okay                         

   Note: Solstice Disksuite (SDS) 4.x is not affected; hence Solaris 7
   and 8 with SDS installed is not affected.
   
3. Symptoms

   Should this issue occur, the system will produce a stack trace
   similiar to the following:
    vpanic(......)
    vmem_hash_delete+0xdc(.....)
    vmem_xfree+0x1c(.....)
    mirror_admin_ioctl+0x888(......)
    md_admin_ioctl+0x130(.....)
    mdioctl+0x90(......)
    ioctl+0x184(......)
    syscall_trap32+0xa8(......)                        

   SOLUTION SUMMARY:
   
4. Relief/Workaround

   There is no workaround. Please see the "Resolution" section below.
   
5. Resolution

   This issue is addressed in the following releases:
   
   SPARC Platform
     * Solaris 9 with patch 113073-13 or later
       
   x86 Platform
     * Solaris 9 with patch 113994-22 or later
       
   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 2000-2004 Sun Microsystems, Inc., 4150 Network Circle, Santa
   Clara, CA 95054 U.S.A. All rights reserved.
   
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