[Full-Disclosure] [ GLSA 200406-01 ] Ethereal: Multiple security problems

From: Thierry Carrez (koon_at_gentoo.org)
Date: 06/04/04

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    To: gentoo-announce@lists.gentoo.org
Date: Fri, 04 Jun 2004 21:30:59 +0200

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    Gentoo Linux Security Advisory GLSA 200406-01
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                                                http://security.gentoo.org/
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      Severity: High
         Title: Ethereal: Multiple security problems
          Date: June 04, 2004
          Bugs: #51022
            ID: 200406-01

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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 <= 0.10.3 >= 0.10.4

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

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

    * A buffer overflow in the MMSE dissector.

    * Under specific conditions a SIP packet could make Ethereal crash.

    * The AIM dissector could throw an assertion, causing Ethereal to
      crash.

    * The SPNEGO dissector could dereference a null pointer, causing a
      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. However, it is strongly recommended to upgrade to
    the latest stable release.

    Resolution
    ==========

    All Ethereal users should upgrade to the latest stable version:

        # emerge sync

        # emerge -pv ">=net-analyzer/ethereal-0.10.4"
        # emerge ">=net-analyzer/ethereal-0.10.4"

    References
    ==========

      [ 1 ] Ethereal enpa-sa-00014
            http://www.ethereal.com/appnotes/enpa-sa-00014.html

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

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

         http://security.gentoo.org/glsa/glsa-200406-01.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 Technologies, 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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    _______________________________________________
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  • Next message: Thomas Walpuski: "[Full-Disclosure] bss-based buffer overflow in l2tpd"

    Relevant Pages

    • [ GLSA 200406-01 ] Ethereal: Multiple security problems
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