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             AUSCERT External Security Bulletin Redistribution

                        ESB-2009.0368 -- [Solaris]
                   Adobe Reader: Execute Arbitrary Code
                               16 April 2009

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

Product:              Adobe Reader
Publisher:            Sun Microsystems
Operating System:     Solaris
Impact:               Execute Arbitrary Code/Commands
                      Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2009-1062 CVE-2009-1061 CVE-2009-0928
                      CVE-2009-0927 CVE-2009-0658 CVE-2009-0193

Ref:                  ESB-2009.0286
                      AL-2009.0018

Original Bulletin:    
  http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-256788-1

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   Solution Type: Sun Alert
   Solution  256788 :   Multiple Security Vulnerabilities in Adobe Reader
   for Solaris 10 May Allow Execution of Arbitrary Code or Cause a Denial
   of Service (DoS) (Adobe Security Bulletin APSB09-04)          
   Bug ID: 6816953

   Product
   Solaris 10 Operating System

   SA Document Body
   Multiple Security Vulnerabilities in Adobe Reader for Solaris 10 May 
   Allow Execution of Arbitrary Code or Cause a Denial of Service (DoS) 
   (Adobe Security Bulletin APSB09-04)

   1. Impact
   Multiple security vulnerabilities in Adobe Reader 9.0 and earlier for
   Solaris 10 may allow remote unprivileged users to execute arbitrary
   code or crash the Adobe Reader application, thereby causing a Denial
   of Service (DoS) condition. These vulnerabilities may be exploited via
   specially crafted PDF files.
   These issues are also described in the following documents:

   APSA09-01 at
   http://www.adobe.com/support/security/advisories/apsa09-01.html
   APSB09-03 at
   http://www.adobe.com/support/security/bulletins/apsb09-03.html
   APSB09-04 at
   http://www.adobe.com/support/security/bulletins/apsb09-04.html
   CVE-2009-0658 at
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0658
   CVE-2009-0193 at
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0193
   CVE-2009-0927 at
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0927
   CVE-2009-0928 at
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0928
   CVE-2009-1061 at
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1061
   CVE-2009-1062 at
   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1062

   2. Contributing Factors
   These issues can occur in the following release:
   SPARC Platform
     * Solaris 10

   Notes:
   1. Solaris 8, Solaris 9, Solaris 10 on the x86 platform and
   OpenSolaris do not ship Adobe Reader and therefore are not affected by
   this issue.
   2. All versions of Adobe Reader up to and including version 7.0.9 and
   versions 8.0 through 9.0 are affected by these issues.
   To determine the version of Adobe Reader installed on the system, the
   following command can be run:
   $ /usr/bin/acroread -version
   7.0.1

   Earlier versions of Adobe Reader on Solaris 10 only shipped acroread
   in /usr/sfw/bin which do not support the '-version' option, so for
   such instances, the following command can be used instead:
   $ cat `pkgchk -l -P AcroVersion | awk '/Pathname/ { print $2 }'`
   5.0.10

   3. Symptoms
   If the described issues have been exploited to cause a Denial of
   Service (DoS), the Adobe Reader application will crash, potentially
   leaving a core file depending on the system configuration.
   There are no predictable symptoms that would indicate that these
   issues have been exploited to execute arbitrary code.
   
   4. Workaround
   To avoid the described issues, do not load PDF files from untrusted
   sources.
   For the buffer overflow vulnerability described in CVE-2009-0658:
   Disabling JavaScript may prevent this vulnerability from being
   exploited. Acrobat JavaScript can be disabled in the General
   preferences dialog of Adobe Reader with the following:

   1. Edit -> Preferences -> JavaScript
   2. Un-check Enable Acrobat JavaScript

   Note that this workaround will not prevent the vulnerability from
   being exploited, but will only prevent one of the most common exploits
   used against this vulnerability.
   Until patches can be applied, the risk of these vulnerabilities can be
   mitigated by preventing PDF documents from being opened automatically
   by the Web browser. In Firefox 2.0, this can be set by changing the
   default action for PDF documents with the following:

   1. Open the Preferences dialog from the Edit menu
   2. Select Contents tab.
   3. Click on Manage button in  File Types block.
   4. Select PDF in the list and click Change Action.
   5. Select 'Save them on my computer' option and click OK.

   Note that this workaround will reduce the risk of exploitation but
   will not prevent the issue from being exploited.
   In addition, the risk of these vulnerabilities can mitigated by
   disabling JavaScript in Adobe Reader as mentioned above. JavaScript is
   not necessary for these vulnerabilities to be exploited, but if
   JavaScript is disabled it is typically more difficult to do so.
   Interim Security Relief (ISR) is available from
   http://sunsolve.sun.com/tpatches for the following release:
   SPARC Platform
     * Solaris 10 IDR141324-01

   Note: This document refers to one or more Interim Security Relief
   (ISRs) which are designed to address the concerns identified herein.
   Sun has limited experience with these (ISRs) due to their interim
   nature. As such, you should only install the ISRs on systems meeting
   the configurations described above. Sun may release full patches at a
   later date, however, Sun is under no obligation whatsoever to create,
   release, or distribute any such patch.
   
   5. Resolution
   A final resolution is pending completion.

   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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