The default configuration of Red Hat Enterprise IPA 1.0.0 and FreeIPA before 1.1.1 places ldap:///anyone on the read ACL for the krbMKey attribute, which allows remote attackers to obtain the Kerberos master key via an anonymous LDAP query.
https://www.redhat.com/archives/fedora-package-announce/2008-September/msg00743.html
https://www.redhat.com/archives/fedora-package-announce/2008-September/msg00733.html
https://bugzilla.redhat.com/show_bug.cgi?id=457835
http://www.securitytracker.com/id?1020850
http://www.securityfocus.com/bid/31111
http://www.freeipa.org/page/News
http://www.freeipa.org/page/Downloads
http://www.freeipa.org/page/CVE-2008-3274
http://secunia.com/advisories/31861