pam_ldap in nss_ldap on Red Hat Enterprise Linux 4, Fedora Core 3 and earlier, and possibly other distributions does not return an error condition when an LDAP directory server responds with a PasswordPolicyResponse control response, which causes the pam_authenticate function to return a success code even if authentication has failed, as originally reported for xscreensaver.
Novell Linux Desktop 9 for x86 Novell Linux Desktop 9 for x86_64 SUSE Linux Enterprise Server 10 SP1 for AMD64 and Intel EM64T SUSE Linux Enterprise Server 10 SP1 for IBM POWER SUSE Linux Enterprise Server 10 SP1 for IBM zSeries 64bit SUSE Linux Enterprise Server 10 SP1 for IPF SUSE Linux Enterprise Server 10 SP1 for x86 SUSE Linux Enterprise Server 11 SP1 SUSE Linux Enterprise Server 11 SP2 SUSE Linux Enterprise Server 11 SP3 SUSE Linux Enterprise Server 11 SP4