[ GLSA 200407-08 ] Ethereal: Multiple security problems

From: Kurt Lieber (klieber_at_gentoo.org)
Date: 07/09/04

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    Gentoo Linux Security Advisory GLSA 200407-08
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                                                http://security.gentoo.org/
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      Severity: High
         Title: Ethereal: Multiple security problems
          Date: July 09, 2004
          Bugs: #56423
            ID: 200407-08

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    Synopsis
    ========

    Multiple vulnerabilities including one buffer overflow exist in
    Ethereal, which may allow an attacker to run arbitrary code or crash
    the program.

    Background
    ==========

    Ethereal is a feature rich network protocol analyzer.

    Affected packages
    =================

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 net-analyzer/ethereal <= 0.10.4 >= 0.10.5

    Description
    ===========

    There are multiple vulnerabilities in versions of Ethereal earlier than
    0.10.5, including:

    * In some cases the iSNS dissector could cause Ethereal to abort.

    * If there was no policy name for a handle for SMB SID snooping it
      could cause a crash.

    * A malformed or missing community string could cause the SNMP
      dissector to crash.

    Impact
    ======

    An attacker could use these vulnerabilities to crash Ethereal or even
    execute arbitrary code with the permissions of the user running
    Ethereal, which could be the root user.

    Workaround
    ==========

    For a temporary workaround you can disable all affected protocol
    dissectors by selecting Analyze->Enabled Protocols... and deselecting
    them from the list. For SMB you can disable SID snooping in the SMB
    protocol preference. However, it is strongly recommended to upgrade to
    the latest stable version.

    Resolution
    ==========

    All Ethereal users should upgrade to the latest stable version:

        # emerge sync

        # emerge -pv ">=net-analyzer/ethereal-0.10.5"
        # emerge ">=net-analyzer/ethereal-0.10.5"

    References
    ==========

      [ 1 ] Ethereal enpa-sa-00015
            http://www.ethereal.com/appnotes/enpa-sa-00015.html

    Availability
    ============

    This GLSA and any updates to it are available for viewing at
    the Gentoo Security Website:

        http://security.gentoo.org/glsa/glsa-200407-08.xml

    Concerns?
    =========

    Security is a primary focus of Gentoo Linux and ensuring the
    confidentiality and security of our users machines is of utmost
    importance to us. Any security concerns should be addressed to
    security@gentoo.org or alternatively, you may file a bug at
    http://bugs.gentoo.org.

    License
    =======

    Copyright 2004 Gentoo Foundation, Inc; referenced text
    belongs to its owner(s).

    The contents of this document are licensed under the
    Creative Commons - Attribution / Share Alike license.

    http://creativecommons.org/licenses/by-sa/1.0

    
    



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