The remote host is missing an update to openldap2 announced via advisory DSA 227-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20227-1

The SuSE Security Team reviewed critical parts of openldap2, an implementation of the Lightweight Directory Access Protocol (LDAP) version 2 and 3, and found several buffer overflows and other bugs remote attackers could exploit to gain access on systems running vulnerable LDAP servers. In addition to these bugs, various local exploitable bugs within the OpenLDAP2 libraries have been fixed. For the current stable distribution (woody) these problems have been fixed in version 2.0.23-6.3. The old stable distribution (potato) does not contain OpenLDAP2 packages. For the unstable distribution (sid) these problems have been fixed in version 2.0.27-3. We recommend that you upgrade your openldap2 packages.