[ GLSA 200501-27 ] Ethereal: Multiple vulnerabilities

From: Luke Macken (lewk_at_gentoo.org)
Date: 01/20/05

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    Date: Thu, 20 Jan 2005 17:31:54 -0500
To: gentoo-announce@gentoo.org

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    Gentoo Linux Security Advisory GLSA 200501-27
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                                                http://security.gentoo.org/
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      Severity: High
         Title: Ethereal: Multiple vulnerabilities
          Date: January 20, 2005
          Bugs: #78559
            ID: 200501-27

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    Synopsis
    ========

    Multiple vulnerabilities exist in Ethereal, which may allow an attacker
    to run arbitrary code, crash the program or perform DoS by CPU and disk
    utilization.

    Background
    ==========

    Ethereal is a feature rich network protocol analyzer.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 net-analyzer/ethereal < 0.10.9 >= 0.10.9

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

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

    * The COPS dissector could go into an infinite loop (CAN-2005-0006).

    * The DLSw dissector could cause an assertion, making Ethereal exit
      prematurely (CAN-2005-0007).

    * The DNP dissector could cause memory corruption (CAN-2005-0008).

    * The Gnutella dissector could cause an assertion, making Ethereal
      exit prematurely (CAN-2005-0009).

    * The MMSE dissector could free statically-allocated memory
      (CAN-2005-0010).

    * The X11 dissector is vulnerable to a string buffer overflow
      (CAN-2005-0084).

    Impact
    ======

    An attacker might be able to use these vulnerabilities to crash
    Ethereal, perform DoS by CPU and disk space utilization 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 version.

    Resolution
    ==========

    All Ethereal users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=net-analyzer/ethereal-0.10.9"

    References
    ==========

      [ 1 ] CAN-2005-0006
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0006
      [ 2 ] CAN-2005-0007
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0007
      [ 3 ] CAN-2005-0008
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0008
      [ 4 ] CAN-2005-0009
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0009
      [ 5 ] CAN-2005-0010
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0010
      [ 6 ] CAN-2005-0084
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0084
      [ 7 ] Ethereal Release Notes
            http://www.ethereal.com/news/item_20050120_01.html

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

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

      http://security.gentoo.org/glsa/glsa-200501-27.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 2005 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/2.0

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