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Sicherheit: Mehrere Probleme in samba
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in samba
ID: RHSA-2018:2613-01
Distribution: Red Hat
Plattformen: Red Hat Gluster Storage
Datum: Di, 4. September 2018, 14:38
Referenzen: https://access.redhat.com/security/cve/CVE-2018-10858
https://access.redhat.com/security/cve/CVE-2018-1139
https://access.redhat.com/security/cve/CVE-2018-1050
Applikationen: Samba

Originalnachricht

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

Synopsis: Moderate: samba security, bug fix and enhancement update
Advisory ID: RHSA-2018:2613-01
Product: Red Hat Gluster Storage
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2613
Issue date: 2018-09-04
CVE Names: CVE-2018-1050 CVE-2018-1139 CVE-2018-10858
=====================================================================

1. Summary:

Updated samba packages that fix several security issues and provide several
bug fixes and an enhancement are now available for Red Hat Gluster Storage
3.4 for Red Hat Enterprise Linux 7.

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 3.4 Samba on RHEL-7 - 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
allow PC-compatible machines to share files, printers, and various
information.

Security Fix(es):

* samba: Weak authentication protocol regression (CVE-2018-1139)

* samba: Insufficient input validation in libsmbclient (CVE-2018-10858)

* samba: Null pointer indirection in printer server process (CVE-2018-1050)

Red Hat would like to thank the Samba project for reporting CVE-2018-1139
and CVE-2018-1050. Upstream acknowledges Vivek Das (Red Hat) as the
original reporter of CVE-2018-1139.

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

Bug Fix(es):

* Previously, sharing a subdirectory of a Gluster volume failed with an I/O
error when the shadow_copy2 vfs object was specified. This occurred because
Gluster volumes are remote file systems, and shadow_copy2 only detected
share paths in the local file system. This update forces the value of
shadow:mountpath to '/', skipping the code related to mount point
detection, and preventing this problem. However, this fix requires that the
glusterfs vfs object is listed after the shadow_copy2 vfs object in the
smb.conf file. (BZ#1379444)

* As of Red Hat Gluster Storage 3.4, the libldb package is no longer
shipped as an independent package in the Red Hat Gluster Storage Samba
channel. The capabilities of the libldb package are now provided by a
combination of the samba-client and samba-client-libs packages. In
addition, the sub-packages previously provided by libldb are now provided
by the samba-client and samba-client-libs packages. The samba-client
sub-package provides ldb-tools, and the samba-client-libs sub-package
provides pyldb. (BZ#1592794)

Enhancement(s):

* Red Hat Gluster Storage volumes exported using SMB can now be mounted on
macOS clients using Finder. Configuration instructions are provided as part
of the Red Hat Gluster Storage 3.4 documentation. (BZ#1446125)

Red Hat strongly recommends upgrading 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/):

1500295 - [Samba-Mac OS]Multiple core files are generated upon delete operation
in a share mount on Mac OS
1505934 - [RHEL7] [Rebase] Samba: Yum update for Samba will fail due to higher
versions in RHEL 7.5
1511939 - [RHEL7] [Rebase] Samba rebase requires update to some dependent
libraries
1538771 - CVE-2018-1050 samba: Null pointer indirection in printer server
process
1547976 - [Samba-Iozone] Iozone stopped working throws fsync error over a
gluster-smb share on windows
1566113 - ctdb: Configuration file /usr/lib/systemd/system/ctdb.service is
marked executable.
1589651 - CVE-2018-1139 samba: Weak authentication protocol regression
1612805 - CVE-2018-10858 samba: insufficient input validation in libsmbclient
1619108 - [Samba] Unable to create files and directories in the root path of a
smb mount in windows client

6. Package List:

Red Hat Gluster 3.4 Samba on RHEL-7:

Source:
libtalloc-2.1.11-1.el7rhgs.src.rpm
libtdb-1.3.15-4.el7rhgs.src.rpm
libtevent-0.9.35-1.el7rhgs.src.rpm
samba-4.7.5-110.el7rhgs.src.rpm

noarch:
samba-common-4.7.5-110.el7rhgs.noarch.rpm
samba-pidl-4.7.5-110.el7rhgs.noarch.rpm

x86_64:
ctdb-4.7.5-110.el7rhgs.x86_64.rpm
libsmbclient-4.7.5-110.el7rhgs.x86_64.rpm
libsmbclient-devel-4.7.5-110.el7rhgs.x86_64.rpm
libtalloc-2.1.11-1.el7rhgs.x86_64.rpm
libtalloc-debuginfo-2.1.11-1.el7rhgs.x86_64.rpm
libtalloc-devel-2.1.11-1.el7rhgs.x86_64.rpm
libtdb-1.3.15-4.el7rhgs.x86_64.rpm
libtdb-debuginfo-1.3.15-4.el7rhgs.x86_64.rpm
libtdb-devel-1.3.15-4.el7rhgs.x86_64.rpm
libtevent-0.9.35-1.el7rhgs.x86_64.rpm
libtevent-debuginfo-0.9.35-1.el7rhgs.x86_64.rpm
libtevent-devel-0.9.35-1.el7rhgs.x86_64.rpm
libwbclient-4.7.5-110.el7rhgs.x86_64.rpm
libwbclient-devel-4.7.5-110.el7rhgs.x86_64.rpm
pytalloc-2.1.11-1.el7rhgs.x86_64.rpm
pytalloc-devel-2.1.11-1.el7rhgs.x86_64.rpm
python-tdb-1.3.15-4.el7rhgs.x86_64.rpm
python-tevent-0.9.35-1.el7rhgs.x86_64.rpm
samba-4.7.5-110.el7rhgs.x86_64.rpm
samba-client-4.7.5-110.el7rhgs.x86_64.rpm
samba-client-libs-4.7.5-110.el7rhgs.x86_64.rpm
samba-common-libs-4.7.5-110.el7rhgs.x86_64.rpm
samba-common-tools-4.7.5-110.el7rhgs.x86_64.rpm
samba-dc-4.7.5-110.el7rhgs.x86_64.rpm
samba-dc-libs-4.7.5-110.el7rhgs.x86_64.rpm
samba-debuginfo-4.7.5-110.el7rhgs.x86_64.rpm
samba-devel-4.7.5-110.el7rhgs.x86_64.rpm
samba-krb5-printing-4.7.5-110.el7rhgs.x86_64.rpm
samba-libs-4.7.5-110.el7rhgs.x86_64.rpm
samba-python-4.7.5-110.el7rhgs.x86_64.rpm
samba-vfs-glusterfs-4.7.5-110.el7rhgs.x86_64.rpm
samba-winbind-4.7.5-110.el7rhgs.x86_64.rpm
samba-winbind-clients-4.7.5-110.el7rhgs.x86_64.rpm
samba-winbind-krb5-locator-4.7.5-110.el7rhgs.x86_64.rpm
samba-winbind-modules-4.7.5-110.el7rhgs.x86_64.rpm
tdb-tools-1.3.15-4.el7rhgs.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-2018-1050
https://access.redhat.com/security/cve/CVE-2018-1139
https://access.redhat.com/security/cve/CVE-2018-10858
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 2018 Red Hat, Inc.
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