Format string vulnerabilities in iPlanet Directory Server 4.1.4 and earlier (LDAP) allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code, as demonstrated by the PROTOS LDAPv3 test suite.
https://exchange.xforce.ibmcloud.com/vulnerabilities/6898
http://www.securityfocus.com/bid/3039
http://www.kb.cert.org/vuls/id/JPLA-4WESMM
http://www.kb.cert.org/vuls/id/276944
http://www.ee.oulu.fi/research/ouspg/protos/testing/c06/ldapv3/