samba4 security update

CentOS Errata and Security Advisory CESA-2014:1009

Samba is an open-source implementation of the Server Message Block (SMB) or
Common Internet File System (CIFS) protocol, which allows PC-compatible
machines to share files, printers, and other information.

A heap-based buffer overflow flaw was found in Samba’s NetBIOS message
block daemon (nmbd). An attacker on the local network could use this flaw
to send specially crafted packets that, when processed by nmbd, could
possibly lead to arbitrary code execution with root privileges.
(CVE-2014-3560)

All Samba users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing this
update, the smb service will be restarted automatically.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2014-August/082627.html

Affected packages:
samba4
samba4-client
samba4-common
samba4-dc
samba4-dc-libs
samba4-devel
samba4-libs
samba4-pidl
samba4-python
samba4-swat
samba4-test
samba4-winbind
samba4-winbind-clients
samba4-winbind-krb5-locator

Upstream details at:
https://access.redhat.com/errata/RHSA-2014:1009