[ GLSA 200407-04 ] Pure-FTPd: Potential DoS when maximum connections is reached

[Thierry Carrez <koon () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200407-04
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Pure-FTPd: Potential DoS when maximum connections is
            reached
      Date: July 04, 2004
      Bugs: #54590
        ID: 200407-04

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Synopsis
========

Pure-FTPd contains a bug potentially allowing a Denial of Service
attack when the maximum number of connections is reached.

Background
==========

Pure-FTPd is a fast, production-quality and standards-compliant FTP
server.

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

    -------------------------------------------------------------------
     Package            /   Vulnerable   /                  Unaffected
    -------------------------------------------------------------------
  1  net-ftp/pure-ftpd       <= 1.0.18                    >= 1.0.18-r1

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

Pure-FTPd contains a bug in the accept_client function handling the
setup of new connections.

Impact
======

When the maximum number of connections is reached an attacker could
exploit this vulnerability to perform a Denial of Service attack.

Workaround
==========

There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version.

Resolution
==========

All Pure-FTPd users should upgrade to the latest stable version:

    # emerge sync

    # emerge -pv ">=net-ftp/pure-ftpd-1.0.18-r1"
    # emerge ">=net-ftp/pure-ftpd-1.0.18-r1"

References
==========

  [ 1 ] Pure-FTPd website
        http://www.pureftpd.org

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

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

    http://security.gentoo.org/glsa/glsa-200407-04.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 Technologies, 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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