From ${URL} : Samba 4.x before 4.0.4, when configured as an Active Directory domain controller, uses world-writable permissions on non-default CIFS shares, which allows remote authenticated users to read, modify, create, or delete arbitrary files via standard filesystem operations. @maintainer: please check if 3.x is vulnerable.
CVE-2013-1863 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-1863): Samba 4.x before 4.0.4, when configured as an Active Directory domain controller, uses world-writable permissions on non-default CIFS shares, which allows remote authenticated users to read, modify, create, or delete arbitrary files via standard filesystem operations.