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             AUSCERT External Security Bulletin Redistribution

                        ESB-2008.0621 -- [Solaris]
 A Security Vulnerability in IP Multicast Filter processing of Sockets may
      lead to a system panic or possible execution of Arbitrary Code
                               20 June 2008

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              IP kernel module
Publisher:            Sun Microsystems
Operating System:     Solaris
Impact:               Execute Arbitrary Code/Commands
                      Denial of Service
Access:               Existing Account
CVE Names:            CVE-2008-2710

Original Bulletin:   
  http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-237965-1

Revision History:     June 20 2008: Added CVE Reference
                      June 16 2008: Initial Release

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   Solution Type: Sun Alert
   Solution  237965 :   A Security Vulnerability in IP Multicast Filter
   processing of Sockets may lead to a system panic or possible execution
   of Arbitrary Code          
   Bug ID: 6597712

   Product
   Solaris 10 Operating System, OpenSolaris

   Date of Resolved Release: 12-Jun-2008

   SA Document Body
   A Security Vulnerability in IP Multicast Filter processing of Sockets 
   may lead to a system panic or possible execution of Arbitrary Code

   1. Impact
   A security vulnerability in the Solaris 10 IP (see ip(7P)) kernel
   module relating to setting a socket's multicast filter may allow a
   local unprivileged user the ability to panic the system or execute
   arbitrary commands with all privileges. The ability to panic a system
   is a type of Denial of Service (DoS).
   Sun acknowledges with thanks, Tobias Klein (http://www.trapkit.de/)
   for bringing this issue to our attention.
   This issue is also referenced in the following document:

   http://www.trapkit.de/advisories/TKADV2008-003.txt

   2. Contributing Factors
   This issue can occur in the following releases:
   SPARC Platform
     * Solaris 10 without patch 137111-01
     * OpenSolaris based upon builds snv_13 through snv_91

   x86 Platform
     * Solaris 10 without patch 137112-01
     * OpenSolaris based upon builds snv_13 through snv_91

   Note: Solaris 8 and 9 are not affected by this issue.

   3. Symptoms
   The system may panic with a stack trace similar to the following:
   bcopy
   l_copy
   ip_set_srcfilter
   ip_sioctl_msfilter
   ip_process_ioctl
   ip_wput_nondata
   ip_output
   ip_wput
   putnext
   ar_wput
   putnext
   strdoioctl
   strioctl
   spec_ioctl
   fop_ioctl
   ioctl
   sys_sysenter

   4. Workaround
   There is no workaround for this issue. Please see the Resolution
   section below.
   5. Resolution

   This issue is addressed in the following releases:
   SPARC Platform
     * Solaris 10 with patch 137111-01 or later
     * OpenSolaris based upon builds snv_92 or later

   x86 Platform
     * Solaris 10 with patch 137112-01 or later
     * OpenSolaris based upon builds snv_92 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 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa
   Clara, CA 95054 U.S.A. All rights reserved

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