[ GLSA 200409-14 ] Samba: Remote printing vulnerability

From: Sune Kloppenborg Jeppesen (jaervosz_at_gentoo.org)
Date: 09/09/04

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    To: gentoo-announce@gentoo.org
Date: Thu, 9 Sep 2004 08:58:16 +0200

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    Gentoo Linux Security Advisory GLSA 200409-14
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: Samba: Remote printing vulnerability
          Date: September 09, 2004
          Bugs: #62476
            ID: 200409-14

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    Synopsis
    ========

    Samba is vulnerable to a remote denial of service attack due to out of
    sequence print change notification requests.

    Background
    ==========

    Samba is a freely available SMB/CIFS implementation which allows
    seamless interoperability of file and print services to other SMB/CIFS
    clients.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 net-fs/samba < 3.0.6 >= 3.0.6

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

    Due to a bug in the printer_notify_info() function, authorized users
    could potentially crash the Samba server by sending improperly handled
    print change notification requests in an invalid order. Windows XP SP2
    clients can trigger this behavior by sending a
    FindNextPrintChangeNotify() request before previously sending a
    FindFirstPrintChangeNotify() request.

    Impact
    ======

    A remote authorized user could potentially crash a Samba server after
    issuing these out of sequence requests.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All Samba users should upgrade to the latest version:

        # emerge sync

        # emerge -pv ">=net-fs/samba-3.0.6"
        # emerge ">=net-fs/samba-3.0.6"

    References
    ==========

      [ 1 ] Samba Release Notes
            http://samba.org/samba/history/samba-3.0.6.html
      [ 2 ] BugTraq Advisory
            http://www.securityfocus.com/archive/1/373619

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

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

      http://security.gentoo.org/glsa/glsa-200409-14.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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