Utvrđen je i ispravljen sigurnosni propust u radu programskog paketa ChaSen. Udaljenim napadačima omogućuje izvođenje DoS napada i izvršavanje proizvoljnog programskog koda.

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Gentoo Linux Security Advisory                           GLSA 201207-03
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: ChaSen: User-assisted execution of arbitrary code
     Date: July 09, 2012
     Bugs: #390769
       ID: 201207-03

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Synopsis
========

A buffer overflow vulnerability in ChaSen could result in the execution
of arbitrary code.

Background
==========

ChaSen is a Japanese morphological analysis system.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-text/chasen             < 2.4.4-r2               >= 2.4.4-r2

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

An error in chalib.c of ChaSen could cause a buffer overflow.

Impact
======

A remote attacker could entice a user to open a specially crafted text
file using ChaSen or an application using the ChaSen libraries,
possibly resulting in execution of arbitrary code with the privileges
of the process or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All ChaSen users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-text/chasen-2.4.4-r2"

References
==========

[ 1 ] CVE-2011-4000
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4000

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

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

 http://security.gentoo.org/glsa/glsa-201207-03.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
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https://bugs.gentoo.org.

License
=======

Copyright 2012 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