Description
DefaultHostnameVerifier in Ldaptive (formerly vt-ldap) does not properly verify that the server hostname matches a domain name in the subject's Common Name (CN) field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
Remediation
References
http://shibboleth.net/community/advisories/secadv_20140919.txt
https://bugzilla.redhat.com/show_bug.cgi?id=1140438
https://code.google.com/archive/p/vt-middleware/issues/226
https://code.google.com/archive/p/vt-middleware/issues/227
https://code.google.com/archive/p/vt-middleware/issues/228