Sun Java System Directory Proxy Server 6.0, 6.1, and 6.2 classifies a connection using the "bind-dn" criteria, which can cause an incorrect application of policy and allows remote attackers to bypass intended access restrictions for the server.

Unspecified vulnerability in the LDAP Software Development Kit (SDK) for C, as used in Sun Java System Directory Server 5.2 up to Patch 4 and Sun ONE Directory Server 5.1, allows remote attackers to cause a denial of service (crash) via certain BER encodings.

The LDAP server (ns-slapd) in Sun Java System Directory Server 5.2 Patch4 and earlier and ONE Directory Server 5.1 and 5.2 allows remote attackers to cause a denial of service (crash) via malformed queries, probably malformed BER queries, which trigger a free of uninitialized memory locations.

Stack-based buffer overflow in help.cgi in the HTTP administrative interface for (1) Sun Java System Directory Server 5.2 2003Q4, 2004Q2, and 2005Q1, (2) Red Hat Directory Server and (3) Certificate Server before 7.1 SP1, (4) Sun ONE Directory Server 5.1 SP4 and earlier, and (5) Sun ONE Administration Server 5.2 allows remote attackers to cause a denial of service (admin server crash), or local users to gain root privileges.