Boost: Denial of Service

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200802-08 / boost
Release Date	February 14, 2008
Latest Revision	February 14, 2008: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
dev-libs/boost	< 1.34.1-r2	>= 1.34.1-r2	All supported architectures

Related bugreports: #205955

Synopsis

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

2. Impact Information

Background

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

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.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Boost users should upgrade to the latest version:

Code Listing 3.1: Resolution

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

4. References

Page updated February 14, 2008

Summary: This is a Gentoo Linux Security Advisory

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