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             AUSCERT External Security Bulletin Redistribution

                        ESB-2007.0269 -- [Solaris]
       A Security Vulnerability in Sun Cluster Software may Lead to
                  Data Corruption and "send_mondo" Panics
                             3 September 2007

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

Product:              Sun Cluster 3.2
                      Sun Cluster 3.1
Publisher:            Sun Microsystems
Operating System:     Solaris
Impact:               Denial of Service
Access:               Existing Account

Original Bulletin:  
  http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102874-1

Revision History:  September 3 2007: Patches released for Sun Cluster 3.2
                      April 26 2007: Initial Release

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Sun(sm) Alert Notification
     * Sun Alert ID: 102874
     * Synopsis: A Security Vulnerability in Sun Cluster Software may
       Lead to Data Corruption and "send_mondo" Panics
     * Category: Security
     * Product: Sun Cluster 3.1, Solaris Cluster 3.2
     * BugIDs: 6497075
     * Avoidance: Patch
     * State: Resolved
     * Date Released: 24-Apr-2007, 31-Aug-2007
     * Date Closed: 31-Aug-2007
     * Date Modified: 31-Aug-2007

1. Impact

   A privileged user on a Sun Cluster node which is a current cluster
   member may be able to corrupt in-memory data structures of a sibling
   cluster node. This can lead to a system panic and/or data corruption
   on the sibling node which can affect application throughput or
   availability of data or applications to end users depending on how the
   Sun Cluster is configured and is thus a type of Denial of Service
   (DoS).

2. Contributing Factors

   This issue can occur in the following releases:

   SPARC Platform
     * Sun Cluster 3.1 (for Solaris 8) without patch 117950-29
     * Sun Cluster 3.1 (for Solaris 9) without patch 117949-29
     * Sun Cluster 3.1 (for Solaris 10) without patch 120500-14
     * Sun Cluster 3.2 (for Solaris 9) without patch 126105-01
     * Sun Cluster 3.2 (for Solaris 10) without patch 126106-01

   x86 Platform
     * Sun Cluster 3.1 (Solaris 9) without patch 117909-29
     * Sun Cluster 3.1 (Solaris 10) without patch 120501-14
     * Sun Cluster 3.2 (Solaris 10) without patch 126107-01

   Note 1: Sun Cluster 3.0 is not affected by this issue.

   Note 2: Sun/Solaris Cluster is not supported on Solaris 8 or Solaris
   9 for the x86 platform.

   Note 3: The Symcli backup software version 6.2.1 which is supplied by
   EMC may trigger this issue and cause attached cluster nodes to panic
   or experience data corruption.

   Note 4: EMC Symcli backup software is installed under
   "/opt/emc/SYMCLI". Under this path, a directory is named as the Symcli
   version.

3. Symptoms

   If the described issue occurs, data corruption and "send_mondo" panics
   may occur with a stack trace similar to the following:
    genunix:cdev_ioctl()
    did:didioctl()
    specfs:spec_ioctl()
    pxfs:void fobj_ii::cascaded_ioctl ( )
    pxfs:void io_repl_impl::cascaded_ioctl ( )
    cl_comm:void _fs_fobj_cascaded_ioctl_receive()
    cl_comm:void replica_handler::handle_incoming_call()
    cl_comm:void rxdoor::handle_request_common()
    cl_comm:void rxdoor::handle_twoway()
    cl_comm:void recstream::execute() - frame recycled
    cl_comm:void threadpool_worker_t::deferred_task_handler()
    cl_comm:void threadpool::thread_handler()
    cl_comm:cllwpwrapper()
    unix:thread_start()
    ---xxx---
    panic string:   send_mondo_set: timeout

   Note: A "Bad Trap" panic could be another symptom for this issue. 

4. Relief/Workaround

   There is no workaround. Please see the Resolution section below.

5. Resolution

   This issue is addressed in the following releases:

   SPARC Platform
     * Sun Cluster 3.1 (for Solaris 8) with patch 117950-29 or later
     * Sun Cluster 3.1 (for Solaris 9) with patch 117949-29 or later
     * Sun Cluster 3.1 (for Solaris 10) with patch 120500-14 or later
     * Sun Cluster 3.2 (for Solaris 9) with patch 126105-01 or later
     * Sun Cluster 3.2 (for Solaris 10) with patch 126106-01 or later

   x86 Platform
     * Sun Cluster 3.1 (Solaris 9) with patch 117909-29 or later
     * Sun Cluster 3.1 (Solaris 10) with patch 120501-14 or later
     * Sun Cluster 3.2 (Solaris 10) with patch 126107-01 or later

Change History

   31-Aug-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
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