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             AUSCERT External Security Bulletin Redistribution

                        ESB-2009.0482 -- [Solaris]
                         fstat: Denial of Service
                                19 May 2009

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

Product:              fstat
Publisher:            Sun Microsystems
Operating System:     Solaris 9
Impact:               Denial of Service
Access:               Existing Account
CVE Names:            CVE-2009-1673

Original Bulletin:
  http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-257988-1

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Solution Type: Sun Alert
   Solution  257988 :   Security Vulnerability in Solaris 9 fstat(2)
   System Call May Lead to a System Panic, Resulting in a Denial of
   Service (DoS)          
   Bug ID: 6328960

   Product
   Solaris 9 Operating System

   Date of Resolved Release: 14-May-2009

   SA Document Body
   Security Vulnerability in Solaris 9 fstat(2) System Call May Lead to a
   System Panic, Resulting in a Denial of Service (DoS)

   1. Impact
   A security vulnerability related to the fstat(2) system call in
   Solaris 9 may allow a local unprivileged user to panic the system,
   resulting in a Denial of Service (DoS).

   2. Contributing Factors
   This issue can occur in the following releases:
   SPARC Platform
     * Solaris 9 without patch 122300-40

   x86 Platform
     * Solaris 9 without patch 122301-40

   Note: Solaris 8, Solaris 10, and OpenSolaris are not impacted by this
   issue.

   3. Symptoms
   If this issue is exploited to cause a Denial of Service, the system
   may panic with a stack trace which includes lines similar to the
   following:

      genunix:cstatat_getvp+4c (...)
      genunix:cstatat32+58 (...)

   or:

      genunix:o_cstat+14 (...)
      genunix:o_cstatat+4c (...)

   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 9 with patch 122300-40 or later

   x86 Platform
     * Solaris 9 with patch 122301-40 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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