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Gentoo Linux Security Advisory                           GLSA 201207-03
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                                            https://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:

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

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
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.

https://creativecommons.org/licenses/by-sa/2.5/