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ESB-2005.0945 -- Sun Alert Notification 102041 -- Security Vulnerability in the libexif JPEG Image Processing Library

Date: 25 November 2005
References: ESB-2005.0315  

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

              ESB-2005.0945 -- Sun Alert Notification 102041
    Security Vulnerability in the libexif JPEG Image Processing Library
                             25 November 2005

===========================================================================

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

Product:           libexif
Publisher:         Sun Microsystems
Operating System:  Solaris 10
                   Solaris 9
                   Sun Java Desktop System Release 2
                   Sun Java Desktop System 2003
Impact:            Execute Arbitrary Code/Commands
Access:            Remote/Unauthenticated
CVE Names:         CAN-2005-0664

Ref:               ESB-2005.0315

Original Bulletin: 
  http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102041-1

- --------------------------BEGIN INCLUDED TEXT--------------------

Sun(sm) Alert Notification
     * Sun Alert ID: 102041
     * Synopsis: Security Vulnerability in the libexif JPEG Image
       Processing Library
     * Category: Security
     * Product: Solaris 9 Operating System, Solaris 10 Operating System,
       Sun Java Desktop System Release 2, Sun Java Desktop System 2003
     * BugIDs: 6257383, 6345703
     * Avoidance: Patch, Workaround
     * State: Resolved
     * Date Released: 23-Nov-2005
     * Date Closed: 23-Nov-2005
     * Date Modified: 

1. Impact

   A security vulnerability in the libexif JPEG image processing library
   may allow a remote unprivileged user who provides a carefully crafted
   JPEG image the ability to execute arbitrary code with the privileges
   of a local user who opens that image. Furthermore, a remote user may
   be able to create a Denial of Service (DOS) attack by using a
   carefully crafted JPEG image.

   This issue may occur with applications linked against the libexif
   library, including (but not limited to), the Eye of Gnome (eog)
   application, which is distributed as part of the Java Desktop System.

   Note: Most digital cameras produce EXIF files, which are Joint
   Photographic Experts Group (JPEG) files with extra tags that contain
   information about the image. The EXIF library allows you to parse an
   EXIF file and read the data from those tags.

   This issue is described in the following documents:
     * http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0664
     * http://www.novell.com/linux/security/advisories/2005_11_sr.html

2. Contributing Factors

   This issue can occur in the following releases:

   SPARC Platform
     * Solaris 10 without patch 121095-01

   x86 Platform
     * Java Desktop System (JDS) Release 2 (for Solaris 9) without patch
       121093-01
     * Solaris 10 without patch 121096-01

   Linux
     * Sun Java Desktop System (JDS) release 2003
     * Sun Java Desktop System (JDS) Release 2 without the updated RPMs
       (patch-9996)

   Note: Solaris 8 and Solaris 9 are not affected by this issue.

   The described issue only occurs on JDS for Linux with libexif versions
   libexif-0.5.3-91 or earlier.

   To determine if libexif is installed on a Solaris system, the
   following command can be used:
    % pkginfo SUNWlibexif
    GNOME2      SUNWlibexif          libexif

   To determine the release of JDS for Linux installed on a system, the
   following command can be used:
    % cat /etc/sun-release
    Sun Java Desktop System, Release 2 -build 10b (GA)
    Assembled 30 March 2004

   To determine the version of libexif installed on a JDS for Linux
   system, the following command can be run:
    % rpm -qf /usr/lib/libexif.so.5
    libexif-0.5.3-91


3. Symptoms

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

4. Relief/Workaround

   To avoid the described issue, do not load JPEG images from untrusted
   sources.

5. Resolution

   This issue is addressed in the following releases:

   SPARC Platform
     * Solaris 10 with patch 121095-01 or later

   x86 Platform
     * Java Desktop System (JDS) Release 2 (for Solaris 9) with patch
       121093-01 or later
     * Solaris 10 with patch 121096-01 or later

   Linux
     * Sun Java Desktop System (JDS) Release 2 with the updated RPMs
       (patch-9996)

   To download and install the updated RPMs from the update servers,
   select the following sequence from the "launch" menu:
    Launch >> Applications >> System Tools >> Online Update

   For more information on obtaining updates see:
     * http://wwws.sun.com/software/javadesktopsystem/faq.html#5q5
     * http://wwws.sun.com/software/javadesktopsystem/faq.html#5q7

   Note: Sun Java Desktop System (JDS) release 2003 is no longer
   supported and will require an upgrade to a later release with the
   associated patches installed to address this issues.

   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 2000-2005 Sun Microsystems, Inc., 4150 Network Circle, Santa
   Clara, CA 95054 U.S.A. All rights reserved

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        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
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===========================================================================

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