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             AUSCERT External Security Bulletin Redistribution

                        ESB-2008.0864 -- [Solaris]
       Security Vulnerability in GNU tar May Lead to Arbitrary Code
                   Execution or Denial of Service (DoS)
                               30 April 2009

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

Product:              GNU tar
Publisher:            Sun Microsystems
Operating System:     Solaris
                      OpenSolaris
Impact:               Execute Arbitrary Code/Commands
                      Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2006-0300

Ref:                  ESB-2006.0153

Original Bulletin:    
  http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-241646-1

Revision History:         April 30 2009: Added Resolution 
                      September 10 2008: Initial Release

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   Solution Type: Sun Alert
   Solution  241646 :   Security Vulnerability in GNU tar May Lead to
   Arbitrary Code Execution or Denial of Service (DoS)          
   Bug ID: 6407045

   Product
   Solaris 9 Operating System
   Solaris 10 Operating System
   OpenSolaris

   Date of Workaround Release: 08-Sep-2008

   Date of Resolved Release: 28-Apr-2009

   SA Document Body
   Security vulnerability in the GNU tar utility (see gtar(1)):

   1. Impact

   A security vulnerability in the GNU tar utility (see gtar(1)) bundled
   with Solaris 9 and Solaris 10 may allow a local or remote unprivileged
   user who provides a specially crafted tar archive to cause the
   execution of arbitrary code or a program crash. The ability to cause a
   program crash  is a type of Denial of Service (DoS).
   Additional information regarding this issue is available at:
     * CVE-2006-0300 at:
       http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0300

   2. Contributing Factors

   This issue can occur in the following releases:
   SPARC Platform
     * Solaris 9 with patch 118191-01 and without patch 118191-02
     * Solaris 10 without patch 139099-01
     * OpenSolaris based upon builds snv_01 through snv_80

   x86 Platform
     * Solaris 9 with patch 118192-01 and without patch 118192-02
     * Solaris 10 without patch 139100-01
     * OpenSolaris based upon builds snv_01 through snv_80

   Note 1: Solaris 8 does not include support for GNU tar utility and is
   not impacted by this issue.
   Note 2:  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

   There are no predictable symptoms that would indicate the described
   issue has been exploited on a system.

   4. Workaround

   Until the patches for this issue can be applied, users should avoid
   using gtar(1) with archives from untrusted sources.

   5. Resolution

   This issue is addressed in the following releases:
   SPARC Platform
     * Solaris 9 with patch 118191-02 or later
     * Solaris 10 with patch 139099-01 or later
     * OpenSolaris based upon build snv_81 or later

   x86 Platform
     * Solaris 9 with patch 118192-02 or later
     * Solaris 10 with patch 139100-01 or later
     * OpenSolaris based upon build snv_81 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
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   YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT,
   INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE
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   This Sun Alert notification contains Sun proprietary and confidential
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   notification may only be used for the purposes contemplated by these
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   Copyright 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa
   Clara, CA 95054 U.S.A. All rights reserved

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