[ GLSA 200806-01 ] mtr: Stack-based buffer overflow

[Tobias Heinlein <keytoaster () gentoo org>]

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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 () gentoo 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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