samba -- multiple vulnerabilities

Samba team reports:

[CVE-2015-3223] Malicious request can cause Samba LDAP server to hang, spinning using CPU.
[CVE-2015-5330] Malicious request can cause Samba LDAP server
to return uninitialized memory that should not be part of the reply.
[CVE-2015-5296] Requesting encryption should also request
signing when setting up the connection to protect against man-in-the-middle attacks.
[CVE-2015-5299] A missing access control check in the VFS
shadow_copy2 module could allow unauthorized users to access snapshots.
[CVE-2015-7540] Malicious request can cause Samba LDAP server to return crash.
[CVE-2015-8467] Samba can expose Windows DCs to MS15-096
Denial of service via the creation of multiple machine accounts(The Microsoft issue is CVE-2015-2535).
[CVE-2015-5252] Insufficient symlink verification could allow data access outside share path.