Red Hat Directory Server 7.1 before SP7, Red Hat Directory Server 8, and Fedora Directory Server 1.1.1 allow remote attackers to cause a denial of service (CPU consumption and search outage) via crafted LDAP search requests with patterns, related to a single-threaded regular-expression subsystem.
h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01532861
secunia.com/advisories/31565
secunia.com/advisories/31627
secunia.com/advisories/31702
secunia.com/advisories/31867
securitytracker.com/id?1020773
www.redhat.com/docs/manuals/dir-server/release-notes/7.1SP7/index.html
www.redhat.com/support/errata/RHSA-2008-0602.html
www.redhat.com/support/errata/RHSA-2008-0858.html
www.securityfocus.com/bid/30871
www.vupen.com/english/advisories/2008/2480
bugzilla.redhat.com/show_bug.cgi?id=454065
exchange.xforce.ibmcloud.com/vulnerabilities/44733
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6078
rhn.redhat.com/errata/RHSA-2008-0596.html
www.redhat.com/archives/fedora-package-announce/2008-September/msg00521.html
www.redhat.com/archives/fedora-package-announce/2008-September/msg00708.html