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                                    CERT-Renater

                         Note d'Information No. 2008/VULN221
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DATE                      : 17/06/2008

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Solaris 10, OpenSolaris running IP Multicast
                                                Filter.

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