[ GLSA 200805-11 ] Chicken: Multiple vulnerabilities

[Pierre-Yves Rofes <py () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 200805-11
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Chicken: Multiple vulnerabilities
      Date: May 12, 2008
      Bugs: #198979
        ID: 200805-11

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Synopsis
========

Multiple vulnerabilities in Chicken could result in the execution of
arbitrary code.

Background
==========

Chicken is a Scheme interpreter and native Scheme to C compiler.

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

    -------------------------------------------------------------------
     Package             /  Vulnerable  /                   Unaffected
    -------------------------------------------------------------------
  1  dev-scheme/chicken       < 3.1.0                         >= 3.1.0

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

Chicken includes a copy of PCRE which is vulnerable to multiple buffer
overflows and memory corruption vulnerabilities (GLSA 200711-30).

Impact
======

An attacker could entice a user to process specially crafted regular
expressions with Chicken, which could possibly lead to the execution of
arbitrary code, a Denial of Service or the disclosure of sensitive
information.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Chicken users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-scheme/chicken-3.1.0"

References
==========

  [ 1 ] GLSA 200711-30
        http://www.gentoo.org/security/en/glsa/glsa-200711-30.xml

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

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

  http://security.gentoo.org/glsa/glsa-200805-11.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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