The remote host is missing an update to nss-ldapd announced via advisory DSA 1758-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201758-1

Leigh James that discovered that nss-ldapd, an NSS module for using LDAP as a naming service, by default creates the configuration file /etc/nss-ldapd.conf world-readable which could leak the configured LDAP password if one is used for connecting to the LDAP server. The old stable distribution (etch) doesn't contain nss-ldapd. For the stable distribution (lenny) this problem has been fixed in version 0.6.7.1. For the unstable distribution (sid) this problem has been fixed in version 0.6.8. We recommend that you upgrade your nss-ldapd package.