Multiple Security Vulnerabilities in libtiff(3) Handling of CODE_CLEAR Code

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Multiple security vulnerabilities in libtiff(3) handling of CODE_CLEAR code:

1. Impact

Multiple security vulnerabilities have been found in libtiff(3), a library for reading and writing Tag Image File Format (TIFF) files. These vulnerabilities may allow a local or remote unprivileged user to create a carefully crafted LZW-encoded TIFF file that may cause an application linked with libtiff(3) to crash or possibly execute arbitrary code.

These issues are also described in the following document:

CVE-2008-2327 at: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2327
 
2. Contributing Factors

These issues can occur in the following releases:

SPARC Platform

• Solaris 8
  
• Solaris 9
  
• Solaris 10 without patch 119900-07
• OpenSolaris based upon builds snv_01 through snv_98
  

x86 Platform

• Solaris 8
  
• Solaris 9
  
• Solaris 10 without patch 119901-07
• OpenSolaris based upon builds snv_01 through snv_98

Note 1: Sun includes libtiff(3) on the Solaris Companion CD for Solaris 8 (http://wwws.sun.com/software/solaris/freeware/index.html) as an unsupported package which installs to "/opt/sfw" and is vulnerable to this issue. Sites using libtiff(3) from the Solaris Companion CD will have to upgrade to a later version.

Note 2: This issue can only occur on systems with SUNWTiff installed. To determine if SUNWTiff is installed, execute the following command:

    $ pkginfo SUNWTiff
    GNOME2      SUNWTiff libtiff - library for reading and writing TIFF

Note 3: 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

Note 4: Solaris 8 entered EOSL Phase 2 on 1 April 2009. Entitlement to patches developed on or after 1 April 2009 requires the purchase of the [Solaris 8 Vintage Patch Service]. See note in section 5 for more details.

3. Symptoms

Viewing a maliciously crafted TIFF image may lead to an unexpected application termination. There are no predictable symptoms that would indicate these issues have been exploited to execute arbitrary code.

4. Workaround

To work around the described issues, do not load TIFF images from untrusted sources.

5. Resolution

These issues are addressed in the following releases:

SPARC Platform

• Solaris 10 with patch 119900-07 or later
• OpenSolaris based upon builds snv_99 or later
  

x86 Platform

• Solaris 10 with patch 119901-07 or later
• OpenSolaris based upon builds snv_99 or later

A final resolution is pending completion for Solaris 8 and Solaris 9.

Note: The READMEs of Solaris 8 patches developed on or after 1 April 2009 are available to all customers however Solaris 8 entered EOSL Phase 2 on April 1, 2009 and thus entitlement for these patches,  including those that fix security vulnerabilities, requires the purchase of the Solaris 8 Vintage Patch Service. More information about the Solaris 8 Vintage Patch Service is available at:

• http://www.sun.com/service/eosl/Solaris8.html
  

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.

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Modification History

12-Aug-2009: Updated the Contributing Factors section.

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