modrdn.c in slapd in OpenLDAP 2.4.x before 2.4.24 allows remote attackers to cause a denial of service (daemon crash) via a relative Distinguished Name (DN) modification request (aka MODRDN operation) that contains an empty value for the OldDN field.
kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
openwall.com/lists/oss-security/2011/02/28/1
openwall.com/lists/oss-security/2011/02/28/2
openwall.com/lists/oss-security/2011/03/01/11
openwall.com/lists/oss-security/2011/03/01/15
secunia.com/advisories/43331
secunia.com/advisories/43718
security.gentoo.org/glsa/glsa-201406-36.xml
securitytracker.com/id?1025191
www.mandriva.com/security/advisories?name=MDVSA-2011:055
www.mandriva.com/security/advisories?name=MDVSA-2011:056
www.openldap.org/devel/cvsweb.cgi/servers/slapd/modrdn.c.diff?r1=1.170.2.8&r2=1.170.2.9
www.openldap.org/its/index.cgi/Software%20Bugs?id=6768
www.openldap.org/lists/openldap-announce/201102/msg00000.html
www.redhat.com/support/errata/RHSA-2011-0347.html
www.ubuntu.com/usn/USN-1100-1
www.vupen.com/english/advisories/2011/0665
bugzilla.novell.com/show_bug.cgi?id=674985
bugzilla.redhat.com/show_bug.cgi?id=680975
exchange.xforce.ibmcloud.com/vulnerabilities/66239