Gentoo: 201209-07 International Components for Unicode: User-assisted execution
Posted by Benjamin D. Thomas   
Gentoo A buffer overflow in International Components for Unicode could result in execution of arbitrary code or Denial of Service.
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Gentoo Linux Security Advisory                           GLSA 201209-07
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: International Components for Unicode: User-assisted execution
           of arbitrary code
     Date: September 24, 2012
     Bugs: #394201
       ID: 201209-07

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Synopsis
========

A buffer overflow in International Components for Unicode could result
in execution of arbitrary code or Denial of Service.

Background
==========

International Components for Unicode (ICU) is a set of C/C++ and Java
libraries providing Unicode and Globalization support for software
applications.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-libs/icu               < 49.1.1-r1              >= 49.1.1-r1

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

An error in the _canonicalize() function in uloc.cpp could cause a
stack-based buffer overflow.

Impact
======

A remote attacker could entice a user to open a specially crafted
locale representation using an application linked against ICU, 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 ICU users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-libs/icu-49.1.1-r1"

References
==========

[ 1 ] CVE-2011-4599
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4599

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

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

 http://security.gentoo.org/glsa/glsa-201209-07.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
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