Samba 4.0.x before 4.0.11 and 4.1.x before 4.1.1, when LDAP or HTTP is provided over SSL, uses world-readable permissions for a private key, which allows local users to obtain sensitive information by reading the key file, as demonstrated by access to the local filesystem on an AD domain controller.
http://www.samba.org/samba/security/CVE-2013-4476
http://www.samba.org/samba/history/samba-4.1.1.html
http://www.samba.org/samba/history/samba-4.0.11.html
http://security.gentoo.org/glsa/glsa-201502-15.xml
http://lists.opensuse.org/opensuse-updates/2013-12/msg00088.html
http://lists.opensuse.org/opensuse-updates/2013-11/msg00083.html