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             AUSCERT External Security Bulletin Redistribution

                        ESB-2008.0619 -- [Solaris]
           Denial of Service (DoS) Vulnerability in the Solaris
                    e1000g(7D) Gigabit Ethernet Driver
                               20 June 2008

===========================================================================

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

Product:              e1000g(7D) Gigabit Ethernet Driver
Publisher:            Sun Microsystems
Operating System:     Solaris 10
                      OpenSolaris
Impact:               Denial of Service
Access:               Remote/Unauthenticated
CVE Names:            CVE-2008-2707

Original Bulletin:    
  http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-238250-1

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

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   Solution Type: Sun Alert
   Solution  238250 :   Denial of Service (DoS) Vulnerability in the
   Solaris e1000g(7D) Gigabit Ethernet Driver          
   Bug ID: 6665738

   Product
   Solaris 10 Operating System, OpenSolaris

   Date of Resolved Release: 13-Jun-2008

   SA Document Body
   Denial of Service (DoS) Vulnerability in the Solaris e1000g(7D) Gigabit 
   Ethernet Driver

   1. Impact
   A security vulnerability in the Solaris e1000g(7D) Gigabit Ethernet
   driver on systems with Intel 82571/82572 network interface controllers
   may allow a remote unprivileged user to block all inbound network
   packets. This constitutes a Denial of Service (DoS).
   2. Contributing Factors
   This issue can occur in the following releases:
   SPARC Platform
     * Solaris 10 without patch 137289-01
     * OpenSolaris based upon builds snv_22 to snv_92

   x86 Platform
     * Solaris 10 without patch 137293-01
     * OpenSolaris based upon builds snv_19 to snv_92

   Notes:
   1. Solaris 8 and Solaris 9 are not impacted by this issue.
   2. Only OpenSolaris installations including the file
   /kernel/drv/e1000g.conf file are impacted by this issue.
   3. This issue only impacts systems that are using the e1000g Gigabit
   Ethernet driver for the Intel 82571 or 82572 chipset based NICs. To
   determine if a system is equipped with one of these chipsets, the
   following command can be run:
   $ prtconf -pv | egrep "8086,(10a4|10a5|10bc|10d5|105e|107d|107e|107f|10b9)"

   To determine if a system is equipped with e1000g plumbed interfaces,
   the following command can be run (as 'root' user):
   # dladm show-link|grep e1000g
   e1000g0     phys     1500   up       --
   e1000g1     phys     1500   unknown  --

   4. OpenSolaris distributions may include additional bug fixes above
   and beyond the build from which it was derived. The base build can be
   derived as follows:-
   $ uname -a
   SunOS hostname 5.11 snv_86 i86pc i386 i86pc

   3. Symptoms
   There are no predictable symptoms that would indicate the described
   vulnerability has been exploited. Should the described issue occur,
   the system may not receive any network packets on the vulnerable
   interface. While the system can still send the packets, it may not
   respond to network connections, causing the system to be unresponsive.
   4. Workaround
   Should the described issue occur, the network interface can be
   restored by doing the following (as 'root' user):
   # dladm show-link|grep e1000g
   # ifconfig <the e1000g interfaces> unmplumb
   # modinfo | grep e1000g
   # modunload -i <First number from above modinfo i.e the e1000g module id>
   # modload <the e1000g module>
   # ifconfig <the e1000g interfaces> plumb

   5. Resolution

   This issue is addressed in the following releases:
   SPARC Platform
     * Solaris 10 with patch 137289-01 or later
     * OpenSolaris based upon builds snv_93 or later

   x86 Platform
     * Solaris 10 with patch 137293-01 or later
     * OpenSolaris based upon builds snv_93 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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