Gentoo: mlterm Integer overflow vulnerability
Posted by Benjamin D. Thomas   
Gentoo mlterm is vulnerable to an integer overflow, which could potentially allow the execution of arbitrary code.
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Gentoo Linux Security Advisory                           GLSA 200503-13
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: mlterm: Integer overflow vulnerability
      Date: March 07, 2005
      Bugs: #84174
        ID: 200503-13

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Synopsis
========

mlterm is vulnerable to an integer overflow, which could potentially
allow the execution of arbitrary code.

Background
==========

mlterm is a multi-lingual terminal emulator.

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

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  x11-terms/mlterm       < 2.9.2                           >= 2.9.2

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

mlterm is vulnerable to an integer overflow that can be triggered by
specifying a large image file as a background. This only effects users
that have compiled mlterm with the 'gtk' USE flag, which enables
gdk-pixbuf support.

Impact
======

An attacker can create a specially-crafted image file which, when used
as a background by the victim, can lead to the execution of arbitrary
code with the privileges of the user running mlterm.

Workaround
==========

Re-compile mlterm without the 'gtk' USE flag.

Resolution
==========

All mlterm users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-terms/mlterm-2.9.2"

References
==========

  [ 1 ] mlterm ChangeLog
        https://sourceforge.net/project/shownotes.php?release_id=310416

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

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

  http://security.gentoo.org/glsa/glsa-200503-13.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 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