[Full-disclosure] [ GLSA 200704-17 ] 3proxy: Buffer overflow

[Raphael Marichez]

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Gentoo Linux Security Advisory                           GLSA 200704-17
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                                            http://security.gentoo.org/
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  Severity: High
     Title: 3proxy: Buffer overflow
      Date: April 22, 2007
      Bugs: #174429
        ID: 200704-17

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Synopsis
========

A vulnerability has been discovered in 3proxy allowing for the remote
execution of arbitrary code.

Background
==========

3proxy is a multi-protocol proxy, including HTTP/HTTPS/FTP and SOCKS
support.

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

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  net-proxy/3proxy      < 0.5.3h                          >= 0.5.3h

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

The 3proxy development team reported a buffer overflow in the logurl()
function when processing overly long requests.

Impact
======

A remote attacker could send a specially crafted transparent request to
the proxy, resulting in the execution of arbitrary code with privileges
of the user running 3proxy.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All 3proxy users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-proxy/3proxy-0.5.3h"

References
==========

  [ 1 ] CVE-2007-2031
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2031

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

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

  http://security.gentoo.org/glsa/glsa-200704-17.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 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
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