regex/v4/perl_matcher_non_recursive.hpp in the Boost regex library (aka Boost.Regex) in Boost 1.33 and 1.34 allows context-dependent attackers to cause a denial of service (failed assertion and crash) via an invalid regular expression.
bugs.gentoo.org/show_bug.cgi?id=205955
lists.opensuse.org/opensuse-security-announce/2008-03/msg00004.html
secunia.com/advisories/28511
secunia.com/advisories/28527
secunia.com/advisories/28545
secunia.com/advisories/28705
secunia.com/advisories/28860
secunia.com/advisories/28943
secunia.com/advisories/29323
secunia.com/advisories/48099
svn.boost.org/trac/boost/changeset/42674
svn.boost.org/trac/boost/changeset/42745
wiki.rpath.com/Advisories:rPSA-2008-0063
www.gentoo.org/security/en/glsa/glsa-200802-08.xml
www.mandriva.com/en/security/advisories?name=MDVSA-2008:032
www.securityfocus.com/archive/1/488102/100/0/threaded
www.securityfocus.com/bid/27325
www.ubuntu.com/usn/usn-570-1
www.vupen.com/english/advisories/2008/0249
issues.rpath.com/browse/RPL-2143
www.redhat.com/archives/fedora-package-announce/2008-January/msg00760.html