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                                  CERT-Renater

                       Note d'Information No. 2005/VULN388
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DATE                      : 16/06/2005

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Systems running Ettercap.

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Gentoo Linux Security Advisory                           GLSA 200506-07
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                                             http://security.gentoo.org/
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   Severity: High
      Title: Ettercap: Format string vulnerability
       Date: June 11, 2005
       Bugs: #94474
         ID: 200506-07

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Synopsis
========

A format string vulnerability in Ettercap could allow a remote attacker
to execute arbitrary code.

Background
==========

Ettercap is a suite of tools for content filtering, sniffing and man in
the middle attacks on a LAN.

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

     -------------------------------------------------------------------
      Package                /  Vulnerable  /                Unaffected
     -------------------------------------------------------------------
   1  net-analyzer/ettercap       < 0.7.3                      >= 0.7.3

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

The curses_msg function of Ettercap's Ncurses-based user interface
insecurely implements formatted printing.

Impact
======

A remote attacker could craft a malicious network flow that would
result in executing arbitrary code with the rights of the user running
the Ettercap tool, which is often root.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Ettercap users should upgrade to the latest available version:

     # emerge --sync
     # emerge --ask --oneshot --verbose ">=net-analyzer/ettercap-0.7.3"

References
==========

   [ 1 ] CAN-2005-1796
         http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1796

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

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

   http://security.gentoo.org/glsa/glsa-200506-07.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 at 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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