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Red Hat Security Advisory 2019-4023-01

Red Hat Security Advisory 2019-4023-01
Posted Dec 1, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-4023-01 - Samba is an open-source implementation of the Server Message Block protocol and the related Common Internet File System protocol, which allows PC-compatible machines to share files, printers, and various information. A share path definition escape condition has been addressed.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2019-10197
MD5 | b9ff6a56969654e73ac8ad5632fb9628

Red Hat Security Advisory 2019-4023-01

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

Synopsis: Moderate: samba security and bug fix update
Advisory ID: RHSA-2019:4023-01
Product: Red Hat Gluster Storage
Advisory URL: https://access.redhat.com/errata/RHSA-2019:4023
Issue date: 2019-12-02
CVE Names: CVE-2019-10197
=====================================================================

1. Summary:

An update for samba is now available for Red Hat Gluster Storage 3.5 on Red
Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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 Gluster 3.5 Samba on RHEL-6 - noarch, x86_64

3. Description:

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

The following packages have been upgraded to a later upstream version:
samba (4.9.8). (BZ#1724260)

Security Fix(es):

* samba: Combination of parameters and permissions can allow the user to
escape from the share path definition (CVE-2019-10197)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

Bug Fix(es):

* The samba packages have been upgraded to upstream version 4.9.8 which
provides a number of bug fixes and enhancements over the previous version.
(BZ#1724260)

* Previously, CTDB was unable to start due to a missing filesystem
directory. In spite of manually creating the directory, CTDB could not
function properly due to an incorrect SELinux context. With this update,
the rpm package now properly creates the missing directory with the
required SELinux context and CTDB starts correctly. (BZ#1772836)

Users of Samba with Red Hat Gluster Storage are advised to upgrade to these
updated packages.

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/):

1724260 - [RHEL6] [Rebase] Samba rebuild required with new glusterfs
1746225 - CVE-2019-10197 samba: Combination of parameters and permissions can allow user to escape from the share path definition
1772836 - [RHEL-6] Unable to start ctdb because of missing /var/run/ctdb directory

6. Package List:

Red Hat Gluster 3.5 Samba on RHEL-6:

Source:
samba-4.9.8-110.el6rhs.src.rpm

noarch:
samba-common-4.9.8-110.el6rhs.noarch.rpm
samba-pidl-4.9.8-110.el6rhs.noarch.rpm

x86_64:
ctdb-4.9.8-110.el6rhs.x86_64.rpm
libsmbclient-4.9.8-110.el6rhs.x86_64.rpm
libsmbclient-devel-4.9.8-110.el6rhs.x86_64.rpm
libwbclient-4.9.8-110.el6rhs.x86_64.rpm
libwbclient-devel-4.9.8-110.el6rhs.x86_64.rpm
samba-4.9.8-110.el6rhs.x86_64.rpm
samba-client-4.9.8-110.el6rhs.x86_64.rpm
samba-client-libs-4.9.8-110.el6rhs.x86_64.rpm
samba-common-libs-4.9.8-110.el6rhs.x86_64.rpm
samba-common-tools-4.9.8-110.el6rhs.x86_64.rpm
samba-dc-4.9.8-110.el6rhs.x86_64.rpm
samba-dc-libs-4.9.8-110.el6rhs.x86_64.rpm
samba-debuginfo-4.9.8-110.el6rhs.x86_64.rpm
samba-devel-4.9.8-110.el6rhs.x86_64.rpm
samba-krb5-printing-4.9.8-110.el6rhs.x86_64.rpm
samba-libs-4.9.8-110.el6rhs.x86_64.rpm
samba-python-4.9.8-110.el6rhs.x86_64.rpm
samba-vfs-glusterfs-4.9.8-110.el6rhs.x86_64.rpm
samba-winbind-4.9.8-110.el6rhs.x86_64.rpm
samba-winbind-clients-4.9.8-110.el6rhs.x86_64.rpm
samba-winbind-krb5-locator-4.9.8-110.el6rhs.x86_64.rpm
samba-winbind-modules-4.9.8-110.el6rhs.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-2019-10197
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 2019 Red Hat, Inc.
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