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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2006.0581 -- [Solaris] On Solaris 10 a System Panic may Result due to a Race Condition Between netstat(1M) (or snmp queries) and ifconfig(1M) 1 February 2007 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: netstat and ifconfig Publisher: Sun Microsystems Operating System: Solaris 10 Impact: Denial of Service Access: Existing Account Revision History: February 1 2007: Patches now available November 20 2006: Preliminary patch available. August 14 2006: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Sun(sm) Alert Notification * Sun Alert ID: 102569 * Synopsis: On Solaris 10 a System Panic Due to a Race Condition May OccurWhen SNMP Queries are Processed (such as when netstat(1M) or ifconfig(1M) are run) * Category: Security, Availability * Product: Solaris 10 Operating System * BugIDs: 6450585 * Avoidance: Patch * State: Resolved * Date Released: 11-Aug-2006, 11-Jan-2007, 30-Jan-2007 * Date Closed: 30-Jan-2007 * Date Modified: 14-Nov-2006, 11-Jan-2007, 30-Jan-2007 1. Impact A local or remote unprivileged user may be able to trigger a race condition in the kernel and panic a system with certain SNMP requests. A local unprivileged user may be able to trigger the same race condition and panic a local system using certain invocations of ifconfig(1M) or netstat(1M). 2. Contributing Factors This issue can occur in the following releases: SPARC Platform * Solaris 10 with patch 118833-04 through 118833-32 and without patch 118833-33 x86 Platform * Solaris 10 with patch 118855-03 through 118855-32 and without patch 118855-33 Note: Solaris 8 and 9 are not impacted by this issue. 3. Symptoms A panic string and stack backtrace similar to the following: udp_snmp_get+0x100(3012541a658, 0, ... snmpcom_req+0x33c(3012541a658, 300c12929c0, ... ip_snmpmod_wput+0xe4(3012541a658, 300c12929c0, ... putnext+0x218(3012541a750, 3012541a658, ... snmpcom_req+0x368(3012ef12668, 300c12929c0, ... icmp_wput_other+0x10c(3012ef12668, 300c12929c0, ... qdrain_syncq+0x74(3012ef126d0, 3012ef12668, ... drain_syncq+0x2e8(300fc1e01a0, 30124f34520, ... outer_exit+0x8c(300bd9f7ef0, 300fc1e01a0, ... qattach+0x144(3016d0a8d50, 2a1063bf758, ... strioctl+0x1aa4(300fc1f5ca8, 0, ... spec_ioctl+0x8c(2c00000315, 5302, ... fop_ioctl+0x20(3032dccfd80, 5302, ... ioctl+0x184(3, 3016fd2c290, 2073c, ... syscall_trap32+0xcc(3, 5302, ... 4. Relief/Workaround There is no workaround. Please see Resolution section below. 5. Resolution This issue is addressed in the following releases: SPARC Platform * Solaris 10 with patch 118833-33 or later x86 Platform * Solaris 10 with patch 118855-33 or later Change History 14-Nov-2006: * Updated Relief/Workaround section 11-Jan-2007: * Modified Synopsis, Impact and Relief/Workaround sections 30-Jan-2007: * State: Resolved * Updated Contributing Factors and Resolution sections 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. 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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 iQCVAwUBRcFtECh9+71yA2DNAQIrSQP+Jnt4QImkyFi3XY8Cr6CZg2w8mxFMq7Pc 9C1sR232iH5iavwQIgY8gRAlOWewGeXx9QJa7WBKYgpg15pKffk42tTcrK0JI14+ TSDYNMTA54RUTxOVTAWDArt8LuzTHlz9Y9vj1I7AcChRHkFB2vfwBpuD3g8WImuD UYP/1S87OuQ= =YJoq -----END PGP SIGNATURE-----