Gentoo: oftpd Denial of Service
Posted by Benjamin D. Thomas   
Gentoo An assertion in oftpd could lead to a denial of service vulnerability.
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Gentoo Linux Security Advisory                           GLSA 200701-09
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: oftpd: Denial of Service
      Date: January 15, 2007
      Bugs: #159178
        ID: 200701-09

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Synopsis
========

An assertion in oftpd could lead to a denial of service vulnerability.

Background
==========

oftpd is a small, anonymous only ftp daemon.

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

    -------------------------------------------------------------------
     Package        /  Vulnerable  /                        Unaffected
    -------------------------------------------------------------------
  1  net-ftp/oftpd     < 0.3.7-r3                          >= 0.3.7-r3

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

By specifying an unsupported address family in the arguments to a LPRT
or LPASV command, an assertion in oftpd will cause the daemon to abort.

Impact
======

Remote, unauthenticated attackers may be able to terminate any oftpd
process, denying service to legitimate users.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All oftpd users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-ftp/oftpd-0.3.7-r3"

References
==========

  [ 1 ] CVE-2006-6767
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6767

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

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

  http://security.gentoo.org/glsa/glsa-200701-09.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 2007 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/2.5