[Full-disclosure] [ GLSA 200802-08 ] Boost: Denial of Service

[Raphael Marichez]

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Gentoo Linux Security Advisory                           GLSA 200802-08
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Boost: Denial of Service
      Date: February 14, 2008
      Bugs: #205955
        ID: 200802-08

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Synopsis
========

Two vulnerabilities have been reported in Boost, each one possibly
resulting in a Denial of Service.

Background
==========

Boost is a set of C++ libraries, including the Boost.Regex library to
process regular expressions.

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

    -------------------------------------------------------------------
     Package         /   Vulnerable   /                     Unaffected
    -------------------------------------------------------------------
  1  dev-libs/boost      < 1.34.1-r2                      >= 1.34.1-r2

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

Tavis Ormandy and Will Drewry from the Google Security Team reported a
failed assertion in file regex/v4/perl_matcher_non_recursive.hpp
(CVE-2008-0171) and a NULL pointer dereference in function
get_repeat_type() file basic_regex_creator.hpp (CVE-2008-0172) when
processing regular expressions.

Impact
======

A remote attacker could provide specially crafted regular expressions
to an application using Boost, resulting in a crash.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Boost users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-libs/boost-1.34.1-r2"

References
==========

  [ 1 ] CVE-2008-0171
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0171
  [ 2 ] CVE-2008-0172
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0172

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

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

  http://security.gentoo.org/glsa/glsa-200802-08.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 at 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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