libuser has information disclosure when moving user's home directory
https://security-tracker.debian.org/tracker/CVE-2012-5644
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-5644
https://access.redhat.com/security/cve/cve-2012-5644
http://lists.fedoraproject.org/pipermail/package-announce/2013-April/102068.html