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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2009.0536 -- [OpenSolaris] idmap: Denial of service 11 June 2009 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: idmap Publisher: Sun Microsystems Operating System: OpenSolaris Impact: Denial of Service Access: Existing Account CVE Names: CVE-2009-2012 Original Bulletin: http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-260508-1 Revision History: June 11 2009: Document number changed from ESB-2009.0692 to ESB-2009.0536 June 10 2009: Added CVE Reference June 8 2009: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Solution Type: Sun Alert Solution 260508 : A Security Vulnerability in idmap(1M) of OpenSolaris may Allow a Denial of the CIFS (Common Internet File System) Service (DoS) Bug ID: 6810842 Product OpenSolaris Date of Resolved Release: 05-Jun-2009 SA Document Body A security vulnerability in the OpenSolaris idmap(1M) command: 1. Impact A security vulnerability in the OpenSolaris idmap(1M) command may allow a local unprivileged user to kill the idpmapd(1M) daemon on a CIFS (Common Internet File System/Windows file service) server and cause the idmapd(1M) SMF service to transition to the "maintenance" state (see smf(5)). This is a type of Denial of Service (DoS). 2. Contributing Factors This issue can occur in the following releases: SPARC Platform * OpenSolaris based upon builds snv_88 through snv_110 x86 Platform * OpenSolaris based upon builds snv_88 through snv_110 Note 1: Solaris 8, 9 and 10 are not impacted by this issue as they do not support idmap for CIFS. 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: Only systems that are configured to be a CIFS server are impacted by this issue. To determine if a system is a CIFS server, check to see if the SMB server service is online: $ svcs svc:/network/smb/server:default STATE STIME FMRI online 9:17:49 svc:/network/smb/server:default 3. Symptoms If the described issue occurs the idmapd(1M) SMF service (svc:/system/idmap) will be in the "maintenance" state and one or more core files may be generated depending on the configuration of coreadm(1M). The state of the service can be confirmed by using the following command: $ svcs svc:/system/idmap If a core file is generated, the start of the stack trace (from pstack(1) for example) will be similar to the following: libc_hwcap2.so.1`strlen+0x30(0, fea4e9bc, a, 5) list_mappings_cb+0x71c(fea4ea70, 13, 83b5838, 83b597c) sqlite_exec+0xc5(817f818, 821e540, 806410c, fea4ea70, fea4ea6c, 0) process_list_svc_sql+0x50(817f818, 80a8514, 821e540, 400, 0, 8) 4. Workaround There is no workaround for this issue. However, if the described issue occurs, the system can be recovered by executing the following command as root: # svcadm clear svc:/system/idmap:default Note: This will only recover from the failure and does not prevent further failures. 5. Resolution This issue is addressed in the following releases: SPARC Platform * OpenSolaris based upon builds snv_111 or later x86 Platform * OpenSolaris based upon builds snv_111 or later 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 iD8DBQFKMF0cNVH5XJJInbgRAlACAJ4lQyKKeANh9py27C5e3Uo38kCHowCfYGkO /8PFIrLIOEVWPXs/qFZm4v0= =QfJi -----END PGP SIGNATURE-----