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[RHSA-2017:1271-01] Important: samba4 security update

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Red Hat Security Advisory

 

Synopsis: Important: samba4 security update

Advisory ID: RHSA-2017:1271-01

Product: Red Hat Enterprise Linux

Advisory URL: https://access.redhat.com/errata/RHSA-2017:1271

Issue date: 2017-05-24

CVE Names: CVE-2017-7494

=====================================================================

 

1. Summary:

 

An update for samba4 is now available for Red Hat Enterprise Linux 6.

 

Red Hat Product Security has rated this update as having a security impact

of Important. A Common Vulnerability Scoring System (CVSS) base score,

which gives a detailed severity rating, is available for each vulnerability

from the CVE link(s) 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.

 

Security Fix(es):

 

* A remote code execution flaw was found in Samba. A malicious

authenticated samba client, having write access to the samba share, could

use this flaw to execute arbitrary code as root. (CVE-2017-7494)

 

Red Hat would like to thank the Samba project for reporting this issue.

Upstream acknowledges steelo as the original reporter.

 

4. Solution:

 

For details on how to apply this update, which includes the changes

described in this advisory, refer to:

 

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

 

After installing this update, the smb service will be restarted

automatically.

 

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

 

1450347 - CVE-2017-7494 samba: Loading shared modules from any path in the system leading to RCE

 

6. Package List:

 

Red Hat Enterprise Linux Desktop (v. 6):

 

Source:

samba4-4.2.10-10.el6_9.src.rpm

 

i386:

samba4-4.2.10-10.el6_9.i686.rpm

samba4-client-4.2.10-10.el6_9.i686.rpm

samba4-common-4.2.10-10.el6_9.i686.rpm

samba4-dc-4.2.10-10.el6_9.i686.rpm

samba4-dc-libs-4.2.10-10.el6_9.i686.rpm

samba4-debuginfo-4.2.10-10.el6_9.i686.rpm

samba4-devel-4.2.10-10.el6_9.i686.rpm

samba4-libs-4.2.10-10.el6_9.i686.rpm

samba4-pidl-4.2.10-10.el6_9.i686.rpm

samba4-python-4.2.10-10.el6_9.i686.rpm

samba4-test-4.2.10-10.el6_9.i686.rpm

samba4-winbind-4.2.10-10.el6_9.i686.rpm

samba4-winbind-clients-4.2.10-10.el6_9.i686.rpm

samba4-winbind-krb5-locator-4.2.10-10.el6_9.i686.rpm

 

x86_64:

samba4-4.2.10-10.el6_9.x86_64.rpm

samba4-client-4.2.10-10.el6_9.x86_64.rpm

samba4-common-4.2.10-10.el6_9.x86_64.rpm

samba4-dc-4.2.10-10.el6_9.x86_64.rpm

samba4-dc-libs-4.2.10-10.el6_9.x86_64.rpm

samba4-debuginfo-4.2.10-10.el6_9.x86_64.rpm

samba4-devel-4.2.10-10.el6_9.x86_64.rpm

samba4-libs-4.2.10-10.el6_9.x86_64.rpm

samba4-pidl-4.2.10-10.el6_9.x86_64.rpm

samba4-python-4.2.10-10.el6_9.x86_64.rpm

samba4-test-4.2.10-10.el6_9.x86_64.rpm

samba4-winbind-4.2.10-10.el6_9.x86_64.rpm

samba4-winbind-clients-4.2.10-10.el6_9.x86_64.rpm

samba4-winbind-krb5-locator-4.2.10-10.el6_9.x86_64.rpm

 

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

 

Source:

samba4-4.2.10-10.el6_9.src.rpm

 

x86_64:

samba4-4.2.10-10.el6_9.x86_64.rpm

samba4-client-4.2.10-10.el6_9.x86_64.rpm

samba4-common-4.2.10-10.el6_9.x86_64.rpm

samba4-dc-4.2.10-10.el6_9.x86_64.rpm

samba4-dc-libs-4.2.10-10.el6_9.x86_64.rpm

samba4-debuginfo-4.2.10-10.el6_9.x86_64.rpm

samba4-devel-4.2.10-10.el6_9.x86_64.rpm

samba4-libs-4.2.10-10.el6_9.x86_64.rpm

samba4-pidl-4.2.10-10.el6_9.x86_64.rpm

samba4-python-4.2.10-10.el6_9.x86_64.rpm

samba4-test-4.2.10-10.el6_9.x86_64.rpm

samba4-winbind-4.2.10-10.el6_9.x86_64.rpm

samba4-winbind-clients-4.2.10-10.el6_9.x86_64.rpm

samba4-winbind-krb5-locator-4.2.10-10.el6_9.x86_64.rpm

 

Red Hat Enterprise Linux Server (v. 6):

 

Source:

samba4-4.2.10-10.el6_9.src.rpm

 

i386:

samba4-4.2.10-10.el6_9.i686.rpm

samba4-client-4.2.10-10.el6_9.i686.rpm

samba4-common-4.2.10-10.el6_9.i686.rpm

samba4-dc-4.2.10-10.el6_9.i686.rpm

samba4-dc-libs-4.2.10-10.el6_9.i686.rpm

samba4-debuginfo-4.2.10-10.el6_9.i686.rpm

samba4-devel-4.2.10-10.el6_9.i686.rpm

samba4-libs-4.2.10-10.el6_9.i686.rpm

samba4-pidl-4.2.10-10.el6_9.i686.rpm

samba4-python-4.2.10-10.el6_9.i686.rpm

samba4-test-4.2.10-10.el6_9.i686.rpm

samba4-winbind-4.2.10-10.el6_9.i686.rpm

samba4-winbind-clients-4.2.10-10.el6_9.i686.rpm

samba4-winbind-krb5-locator-4.2.10-10.el6_9.i686.rpm

 

ppc64:

samba4-4.2.10-10.el6_9.ppc64.rpm

samba4-client-4.2.10-10.el6_9.ppc64.rpm

samba4-common-4.2.10-10.el6_9.ppc64.rpm

samba4-dc-4.2.10-10.el6_9.ppc64.rpm

samba4-dc-libs-4.2.10-10.el6_9.ppc64.rpm

samba4-debuginfo-4.2.10-10.el6_9.ppc64.rpm

samba4-devel-4.2.10-10.el6_9.ppc64.rpm

samba4-libs-4.2.10-10.el6_9.ppc64.rpm

samba4-pidl-4.2.10-10.el6_9.ppc64.rpm

samba4-python-4.2.10-10.el6_9.ppc64.rpm

samba4-test-4.2.10-10.el6_9.ppc64.rpm

samba4-winbind-4.2.10-10.el6_9.ppc64.rpm

samba4-winbind-clients-4.2.10-10.el6_9.ppc64.rpm

samba4-winbind-krb5-locator-4.2.10-10.el6_9.ppc64.rpm

 

s390x:

samba4-4.2.10-10.el6_9.s390x.rpm

samba4-client-4.2.10-10.el6_9.s390x.rpm

samba4-common-4.2.10-10.el6_9.s390x.rpm

samba4-dc-4.2.10-10.el6_9.s390x.rpm

samba4-dc-libs-4.2.10-10.el6_9.s390x.rpm

samba4-debuginfo-4.2.10-10.el6_9.s390x.rpm

samba4-devel-4.2.10-10.el6_9.s390x.rpm

samba4-libs-4.2.10-10.el6_9.s390x.rpm

samba4-pidl-4.2.10-10.el6_9.s390x.rpm

samba4-python-4.2.10-10.el6_9.s390x.rpm

samba4-test-4.2.10-10.el6_9.s390x.rpm

samba4-winbind-4.2.10-10.el6_9.s390x.rpm

samba4-winbind-clients-4.2.10-10.el6_9.s390x.rpm

samba4-winbind-krb5-locator-4.2.10-10.el6_9.s390x.rpm

 

x86_64:

samba4-4.2.10-10.el6_9.x86_64.rpm

samba4-client-4.2.10-10.el6_9.x86_64.rpm

samba4-common-4.2.10-10.el6_9.x86_64.rpm

samba4-dc-4.2.10-10.el6_9.x86_64.rpm

samba4-dc-libs-4.2.10-10.el6_9.x86_64.rpm

samba4-debuginfo-4.2.10-10.el6_9.x86_64.rpm

samba4-devel-4.2.10-10.el6_9.x86_64.rpm

samba4-libs-4.2.10-10.el6_9.x86_64.rpm

samba4-pidl-4.2.10-10.el6_9.x86_64.rpm

samba4-python-4.2.10-10.el6_9.x86_64.rpm

samba4-test-4.2.10-10.el6_9.x86_64.rpm

samba4-winbind-4.2.10-10.el6_9.x86_64.rpm

samba4-winbind-clients-4.2.10-10.el6_9.x86_64.rpm

samba4-winbind-krb5-locator-4.2.10-10.el6_9.x86_64.rpm

 

Red Hat Enterprise Linux Workstation (v. 6):

 

Source:

samba4-4.2.10-10.el6_9.src.rpm

 

i386:

samba4-4.2.10-10.el6_9.i686.rpm

samba4-client-4.2.10-10.el6_9.i686.rpm

samba4-common-4.2.10-10.el6_9.i686.rpm

samba4-dc-4.2.10-10.el6_9.i686.rpm

samba4-dc-libs-4.2.10-10.el6_9.i686.rpm

samba4-debuginfo-4.2.10-10.el6_9.i686.rpm

samba4-devel-4.2.10-10.el6_9.i686.rpm

samba4-libs-4.2.10-10.el6_9.i686.rpm

samba4-pidl-4.2.10-10.el6_9.i686.rpm

samba4-python-4.2.10-10.el6_9.i686.rpm

samba4-test-4.2.10-10.el6_9.i686.rpm

samba4-winbind-4.2.10-10.el6_9.i686.rpm

samba4-winbind-clients-4.2.10-10.el6_9.i686.rpm

samba4-winbind-krb5-locator-4.2.10-10.el6_9.i686.rpm

 

x86_64:

samba4-4.2.10-10.el6_9.x86_64.rpm

samba4-client-4.2.10-10.el6_9.x86_64.rpm

samba4-common-4.2.10-10.el6_9.x86_64.rpm

samba4-dc-4.2.10-10.el6_9.x86_64.rpm

samba4-dc-libs-4.2.10-10.el6_9.x86_64.rpm

samba4-debuginfo-4.2.10-10.el6_9.x86_64.rpm

samba4-devel-4.2.10-10.el6_9.x86_64.rpm

samba4-libs-4.2.10-10.el6_9.x86_64.rpm

samba4-pidl-4.2.10-10.el6_9.x86_64.rpm

samba4-python-4.2.10-10.el6_9.x86_64.rpm

samba4-test-4.2.10-10.el6_9.x86_64.rpm

samba4-winbind-4.2.10-10.el6_9.x86_64.rpm

samba4-winbind-clients-4.2.10-10.el6_9.x86_64.rpm

samba4-winbind-krb5-locator-4.2.10-10.el6_9.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-2017-7494

https://access.redhat.com/security/updates/classification/#important

https://www.samba.org/samba/security/CVE-2017-7494.html

https://access.redhat.com/security/vulnerabilities/3034621

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2017 Red Hat, Inc.

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