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Red Hat Gluster 3.4 RHSA-2018:2613-01 Moderate Samba Threat Fix

red hat
Calendar Grey September 4, 2018
Scroller Redhat
Recent improvements to samba packages boost security and address bugs in Red Hat Gluster Storage 3.4 for RHEL 7.
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 Li...

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.

Summary

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.

Topics%20covered

Topics Covered

security advisory moderate Red Hat bug fix samba gluster storage

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

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

Read the Full Advisory


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

Topic

Updated samba packages that fix several security issues and provide severalbug fixes and an enhancement are now available for Red Hat Gluster Storage3.4 for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat bug fix samba gluster storage

Relevant Releases Architectures

Red Hat Gluster 3.4 Samba on RHEL-7 - noarch, x86_64

Bugs Fixed

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

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