[ GLSA 200506-24 ] Heimdal: Buffer overflow vulnerabilities

From: Sune Kloppenborg Jeppesen (jaervosz_at_gentoo.org)
Date: 06/29/05

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Date: Wed, 29 Jun 2005 13:32:40 +0200

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    Gentoo Linux Security Advisory GLSA 200506-24
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                                                http://security.gentoo.org/
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      Severity: High
         Title: Heimdal: Buffer overflow vulnerabilities
          Date: June 29, 2005
          Bugs: #96727
            ID: 200506-24

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    Synopsis
    ========

    Multiple buffer overflow vulnerabilities in Heimdal's telnetd server
    could allow the execution of arbitrary code.

    Background
    ==========

    Heimdal is a free implementation of Kerberos 5 that includes a telnetd
    server.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 app-crypt/heimdal < 0.6.5 >= 0.6.5

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

    It has been reported that the "getterminaltype" function of Heimdal's
    telnetd server is vulnerable to buffer overflows.

    Impact
    ======

    An attacker could exploit this vulnerability to execute arbitrary code
    with the permission of the telnetd server program.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All users should upgrade to the latest available version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=app-crypt/heimdal-0.6.5"

    References
    ==========

      [ 1 ] CAN-2005-2040
            http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2040
      [ 2 ] Heimdal Advisory 2005-06-20
            http://www.pdc.kth.se/heimdal/advisory/2005-06-20/

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

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

      http://security.gentoo.org/glsa/glsa-200506-24.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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