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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: samba4 security update
Advisory ID:       RHSA-2016:0449-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2016-0449.html
Issue date:        2016-03-15
CVE Names:         CVE-2015-7560 
=====================================================================

1. Summary:

Updated samba4 packages that fix one security issue are now available
for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Moderate security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

3. Description:

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 flaw was found in the way Samba handled ACLs on symbolic links.
An authenticated user could use this flaw to gain access to an arbitrary
file or directory by overwriting its ACL. (CVE-2015-7560)

Red Hat would like to thank the Samba project for reporting this issue.
Upstream acknowledges Jeremy Allison (Google) and the Samba team as the
original reporters.

All samba4 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.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1309992 - CVE-2015-7560 samba: Incorrect ACL get/set allowed on symlink path

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
samba4-4.0.0-68.el6_7.rc4.src.rpm

i386:
samba4-4.0.0-68.el6_7.rc4.i686.rpm
samba4-client-4.0.0-68.el6_7.rc4.i686.rpm
samba4-common-4.0.0-68.el6_7.rc4.i686.rpm
samba4-dc-4.0.0-68.el6_7.rc4.i686.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.i686.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.i686.rpm
samba4-devel-4.0.0-68.el6_7.rc4.i686.rpm
samba4-libs-4.0.0-68.el6_7.rc4.i686.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.i686.rpm
samba4-python-4.0.0-68.el6_7.rc4.i686.rpm
samba4-swat-4.0.0-68.el6_7.rc4.i686.rpm
samba4-test-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.i686.rpm

x86_64:
samba4-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-client-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-common-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-devel-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-python-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-swat-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-test-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
samba4-4.0.0-68.el6_7.rc4.src.rpm

x86_64:
samba4-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-client-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-common-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-devel-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-python-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-swat-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-test-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
samba4-4.0.0-68.el6_7.rc4.src.rpm

i386:
samba4-4.0.0-68.el6_7.rc4.i686.rpm
samba4-client-4.0.0-68.el6_7.rc4.i686.rpm
samba4-common-4.0.0-68.el6_7.rc4.i686.rpm
samba4-dc-4.0.0-68.el6_7.rc4.i686.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.i686.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.i686.rpm
samba4-devel-4.0.0-68.el6_7.rc4.i686.rpm
samba4-libs-4.0.0-68.el6_7.rc4.i686.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.i686.rpm
samba4-python-4.0.0-68.el6_7.rc4.i686.rpm
samba4-swat-4.0.0-68.el6_7.rc4.i686.rpm
samba4-test-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.i686.rpm

ppc64:
samba4-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-client-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-common-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-dc-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-devel-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-libs-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-python-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-swat-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-test-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.ppc64.rpm

s390x:
samba4-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-client-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-common-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-dc-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-devel-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-libs-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-python-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-swat-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-test-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.s390x.rpm

x86_64:
samba4-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-client-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-common-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-devel-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-python-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-swat-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-test-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
samba4-4.0.0-68.el6_7.rc4.src.rpm

i386:
samba4-4.0.0-68.el6_7.rc4.i686.rpm
samba4-client-4.0.0-68.el6_7.rc4.i686.rpm
samba4-common-4.0.0-68.el6_7.rc4.i686.rpm
samba4-dc-4.0.0-68.el6_7.rc4.i686.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.i686.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.i686.rpm
samba4-devel-4.0.0-68.el6_7.rc4.i686.rpm
samba4-libs-4.0.0-68.el6_7.rc4.i686.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.i686.rpm
samba4-python-4.0.0-68.el6_7.rc4.i686.rpm
samba4-swat-4.0.0-68.el6_7.rc4.i686.rpm
samba4-test-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.i686.rpm

x86_64:
samba4-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-client-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-common-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-devel-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-python-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-swat-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-test-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2015-7560
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2016 Red Hat, Inc.
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