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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2006.0886 -- [Solaris] A Security Vulnerability in the Solaris Kernel May Allow a Denial of Service (DoS) Condition to Occur 5 December 2006 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Solaris Kernel Publisher: Sun Microsystems Operating System: Solaris 10, 9 and 8 Impact: Denial of Service Access: Existing Account Original Bulletin: http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102574-1 - --------------------------BEGIN INCLUDED TEXT-------------------- Sun(sm) Alert Notification * Sun Alert ID: 102574 * Synopsis: A Security Vulnerability in the Solaris Kernel May Allow a Denial of Service (DoS) Condition to Occur * Category: Security * Product: Solaris 9 Operating System, Solaris 10 Operating System, Solaris 8 Operating System * BugIDs: 6272865 * Avoidance: Patch * State: Resolved * Date Released: 30-Nov-2006 * Date Closed: 30-Nov-2006 * Date Modified: 1. Impact A security vulnerability related to a race condition in the Solaris kernel may allow a local unprivileged user to panic the system, creating a Denial of Service (DoS) condition. 2. Contributing Factors This issue can occur in the following releases: SPARC Platform * Solaris 8 without patches 117350-40, 123703-01 and 116959-15 * Solaris 9 without patches 118558-30, 117125-03, 121316-02 and 113278-14 * Solaris 10 without patches 120661-03 and 118822-19 x86 Platform * Solaris 8 without patches 117351-40, 123704-01 and 116960-15 * Solaris 9 without patches 118559-30, 120884-02, 121317-02 and 119439-06 * Solaris 10 without patches 120662-04 and 118844-19 Note: Solaris 7 will not be evaluated regarding the potential impact of this issue. 3. Symptoms A number of different types of panic can result making it difficult to quickly pinpoint this issue as the cause. For example: if running the following command over a resulting crashdump (by default written to /var/crash/<uname -n>, see dumpadm(1M)): # echo "::walk thread | ::findstack ! grep exitlwps" | mdb unix.0 vmcore.0 produces any matches similar to the following: 000002a100e38fc1 exitlwps+0x114() then it is likely that this issue has occurred. 4. Relief/Workaround There is no workaround to this issue. Please see the Resolution section below. 5. Resolution This issue is addressed in the following releases: SPARC Platform * Solaris 8 with patches 117350-40 or later, 123703-01 or later and 116959-15 or later * Solaris 9 with patches 118558-30 or later, 117125-03 or later, 121316-02 or later and 113278-14 or later * Solaris 10 with patches 120661-03 or later and 118822-19 or later x86 Platform * Solaris 8 with patches 117351-40 or later, 123704-01 or later and 116960-15 or later * Solaris 9 with patches 118559-30 or later, 120884-02 or later, 121317-02 or later and 119439-06 or later * Solaris 10 with patches 120662-04 or later and 118844-19 or later Note: Solaris 8 patch 123703-01 has been accumulated into 117350-41 and 123704-01 has been accumulated into 117351-41 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 2000-2006 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 iQCVAwUBRXS9sCh9+71yA2DNAQJZ1wP/UoDXwZ8QxyYKO8gtm5iKkGa66VBBBsoC 6/7+pnX3/QR5FowHbIhByJ3DGszPp/6AMXsTzWXP+kvhLfBbSdmrD7L8zusrXGIu ZI35kAoqc0zZ8hs8FM8H212x/eQoUy0L/kx8mJ1q+0byWQbjYxix8GHXnyWAvPBl 9mv8OlsQNSo= =HLxH -----END PGP SIGNATURE-----