===================================================================== CERT-Renater Note d'Information No. 2009/VULN310 _____________________________________________________________________ DATE : 05/08/2009 HARDWARE PLATFORM(S) : / OPERATING SYSTEM(S) : Solaris, OpenSolaris running libtiff. ====================================================================== http://sunsolve.sun.com/search/document.do?assetkey=1-66-265030-1 ______________________________________________________________________ Solution Type Sun Alert Solution 265030 : Multiple Security Vulnerabilities in libtiff(3) Handling of CODE_CLEAR Code Bug ID 6743799, 6866731 Product Solaris 8 Operating System Solaris 9 Operating System Solaris 10 Operating System OpenSolaris Date of Workaround Release 03-Aug-2009 SA Document Body 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: 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 3: 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. Copyright 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved. ====================================================================== ========================================================= Les serveurs de référence du CERT-Renater http://www.urec.fr/securite http://www.cru.fr/securite http://www.renater.fr ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 151 bd de l'Hopital | fax : 01-53-94-20-41 + + 75013 Paris | email: certsvp@renater.fr + =========================================================