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

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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@xxxxxxxxxx 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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