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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2009.1133 Multiple Security Vulnerabilities in libtiff(3) Handling of CODE_CLEAR Code 5 August 2009 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libtiff Publisher: Sun Microsystems Operating System: Solaris 8 Solaris 9 Solaris 10 OpenSolaris Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2008-2327 Reference: ESB-2008.1014 ESB-2008.0840 ESB-2008.0830 Original Bulletin: http://sunsolve.sun.com/search/document.do?assetkey=1-66-265030-1 - --------------------------BEGIN INCLUDED TEXT-------------------- 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: 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 Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iD8DBQFKeQgyNVH5XJJInbgRApmWAJ9/GXU/kgsvyNldG+CjlgDmR+5E9QCdFsM6 3hHZ1VCS5kkPAI7hzHPEx9I= =S4CJ -----END PGP SIGNATURE-----