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Date: Tue, 03 Jun 2008 17:40:29 +0200
From: Tobias Heinlein <keytoaster@...too.org>
To: gentoo-announce@...too.org
Cc: bugtraq@...urityfocus.com, full-disclosure@...ts.grok.org.uk,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200806-01 ] mtr: Stack-based buffer overflow

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Gentoo Linux Security Advisory                           GLSA 200806-01
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                                            http://security.gentoo.org/
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  Severity: High
     Title: mtr: Stack-based buffer overflow
      Date: June 03, 2008
      Bugs: #223017
        ID: 200806-01

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Synopsis
========

A stack-based buffer overflow was found in mtr, possibly resulting in
the execution of arbitrary code.

Background
==========

mtr combines the functionality of the 'traceroute' and 'ping' programs
in a single network diagnostic tool.

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

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  net-analyzer/mtr      < 0.73-r1                        >= 0.73-r1

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

Adam Zabrocki reported a boundary error within the split_redraw()
function in the file split.c, possibly leading to a stack-based buffer
overflow.

Impact
======

A remote attacker could use a specially crafted resolved hostname to
execute arbitrary code with root privileges. However, it is required
that the attacker controls the DNS server used by the victim, and that
the "-p" (or "--split") command line option is used.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All mtr users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-analyzer/mtr-0.73-r1"

References
==========

  [ 1 ] CVE-2008-2357
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2357

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

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

  http://security.gentoo.org/glsa/glsa-200806-01.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@...too.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2008 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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