[ GLSA 200507-26 ] GNU Gadu, CenterICQ, Kadu, EKG, libgadu: Remote code execution in Gadu library

From: Sune Kloppenborg Jeppesen (jaervosz_at_gentoo.org)
Date: 07/27/05

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    To: gentoo-announce@gentoo.org
Date: Wed, 27 Jul 2005 08:58:40 +0200

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    Gentoo Linux Security Advisory GLSA 200507-26
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                                                http://security.gentoo.org/
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      Severity: High
         Title: GNU Gadu, CenterICQ, Kadu, EKG, libgadu: Remote code
                execution in Gadu library
          Date: July 27, 2005
          Bugs: #99816, #99890, #99583
            ID: 200507-26

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    Synopsis
    ========

    GNU Gadu, CenterICQ, Kadu, EKG and libgadu are vulnerable to an integer
    overflow which could potentially lead to the execution of arbitrary
    code or a Denial of Service.

    Background
    ==========

    GNU Gadu, CenterICQ, Kadu and EKG are instant messaging applications
    created to support Gadu Gadu instant messaging protocol. libgadu is a
    library that implements the client side of the Gadu-Gadu protocol.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 net-im/gnugadu < 2.2.6-r1 >= 2.2.6-r1
      2 net-im/centericq < 4.20.0-r3 >= 4.20.0-r3
      3 net-im/kadu < 0.4.1 >= 0.4.1
      4 net-im/ekg < 1.6_rc3 >= 1.6_rc3
      5 net-libs/libgadu < 20050719 >= 20050719
        -------------------------------------------------------------------
         5 affected packages on all of their supported architectures.
        -------------------------------------------------------------------

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

    GNU Gadu, CenterICQ, Kadu, EKG and libgadu are vulnerable to an integer
    overflow.

    Impact
    ======

    A remote attacker could exploit the integer overflow to execute
    arbitrary code or cause a Denial of Service.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All GNU Gadu users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=net-im/gnugadu-2.2.6-r1"

    All Kadu users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=net-im/kadu-0.4.1"

    All EKG users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=net-im/ekg-1.6_rc3"

    All libgadu users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=net-libs/libgadu-20050719"

    All CenterICQ users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=net-im/centericq-4.20.0-r3"

    CenterICQ is no longer distributed with Gadu Gadu support, affected
    users are encouraged to migrate to an alternative package.

    References
    ==========

      [ 1 ] CAN-2005-1852
            http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1852
      [ 2 ] BugTraq Announcement
            http://www.securityfocus.com/archive/1/406026/30/

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

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

      http://security.gentoo.org/glsa/glsa-200507-26.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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