libsmbclient, samba, samba3x security update

CentOS Errata and Security Advisory CESA-2013:1806

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 the DCE-RPC client code in
Samba. A specially crafted DCE-RPC packet could cause various Samba
programs to crash or, possibly, execute arbitrary code when parsed.
A malicious or compromised Active Directory Domain Controller could use
this flaw to compromise the winbindd daemon running with root privileges.
(CVE-2013-4408)

A flaw was found in the way Samba performed ACL checks on alternate file
and directory data streams. An attacker able to access a CIFS share with
alternate stream support enabled could access alternate data streams
regardless of the underlying file or directory ACL permissions.
(CVE-2013-4475)

Red Hat would like to thank the Samba project for reporting CVE-2013-4408.
Upstream acknowledges Stefan Metzmacher and Michael Adam of SerNet as the
original reporters of this issue.

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

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2013-December/082218.html
https://lists.centos.org/pipermail/centos-announce/2013-December/082219.html

Affected packages:
libsmbclient
libsmbclient-devel
samba
samba-client
samba-common
samba-doc
samba-domainjoin-gui
samba-swat
samba-winbind
samba-winbind-clients
samba-winbind-devel
samba-winbind-krb5-locator
samba3x
samba3x-client
samba3x-common
samba3x-doc
samba3x-domainjoin-gui
samba3x-swat
samba3x-winbind
samba3x-winbind-devel

Upstream details at:
https://access.redhat.com/errata/RHSA-2013:1806