[ GLSA 200409-14 ] Samba: Remote printing vulnerability

[Sune Kloppenborg Jeppesen <jaervosz () gentoo org>]

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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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