pam_ldap and nss_ldap, when used with OpenLDAP and connecting to a slave using TLS, does not use TLS for the subsequent connection if the client is referred to a master, which may cause a password to be sent in cleartext and allows remote attackers to sniff the password.
archives.neohapsis.com/archives/fulldisclosure/2005-07/0060.html
bugs.gentoo.org/show_bug.cgi?id=96767
bugzilla.padl.com/show_bug.cgi?id=210
bugzilla.padl.com/show_bug.cgi?id=211
secunia.com/advisories/17233
secunia.com/advisories/17845
secunia.com/advisories/21520
support.avaya.com/elmodocs2/security/ASA-2006-157.htm
www.gentoo.org/security/en/glsa/glsa-200507-13.xml
www.openldap.org/its/index.cgi/Incoming?id=3791
www.osvdb.org/17692
www.redhat.com/support/errata/RHSA-2005-751.html
www.redhat.com/support/errata/RHSA-2005-767.html
www.securityfocus.com/bid/14125
www.securityfocus.com/bid/14126
www.ubuntu.com/usn/usn-152-1
wwwnew.mandriva.com/security/advisories?name=MDKSA-2005:121
bugzilla.redhat.com/bugzilla/show_bug.cgi?id=161990
exchange.xforce.ibmcloud.com/vulnerabilities/21245
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9445