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Red Hat Security Advisory 2018-1275-01

Red Hat Security Advisory 2018-1275-01
Posted May 3, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-1275-01 - The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. The ovirt-node-ng packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Issues addressed include a privilege escalation vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2018-1088
MD5 | 9361512dcfbfe820d3b6334c2a03755a

Red Hat Security Advisory 2018-1275-01

Change Mirror Download

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

Synopsis: Important: redhat-virtualization-host security update
Advisory ID: RHSA-2018:1275-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2018:1275
Issue date: 2018-05-02
CVE Names: CVE-2018-1088
=====================================================================

1. Summary:

An update for redhat-release-virtualization-host and
redhat-virtualization-host is now available for Red Hat Virtualization 4
for Red Hat Enterprise Linux 7.

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:

RHEL 7-based RHEV-H for RHEV 4 (build requirements) - noarch, x86_64
Red Hat Virtualization 4 Hypervisor for RHEL 7 - noarch

3. Description:

The redhat-virtualization-host packages provide the Red Hat Virtualization
Host. These packages include redhat-release-virtualization-host,
ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are
installed using a special build of Red Hat Enterprise Linux with only the
packages required to host virtual machines. RHVH features a Cockpit user
interface for monitoring the host's resources and performing administrative
tasks.

The ovirt-node-ng packages provide the Red Hat Virtualization Host. These
packages include redhat-release-virtualization-host, ovirt-node, and
rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a
special build of Red Hat Enterprise Linux with only the packages required
to host virtual machines. RHVH features a Cockpit user interface for
monitoring the host's resources and performing administrative tasks.

Security Fix(es):

* glusterfs: Privilege escalation via gluster_shared_storage when snapshot
scheduling is enabled (CVE-2018-1088)

* It was found that fix for CVE-2018-1088 introduced new vulnerability in
the way 'auth.allow' is implemented in glusterfs server. An unauthenticated
gluster client could mount gluster storage volumes. (CVE-2018-1112)

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.

This issue was discovered by John Strunk (Red Hat).

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

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

1558721 - CVE-2018-1088 glusterfs: Privilege escalation via gluster_shared_storage when snapshot scheduling is enabled
1568527 - [Tracker] RHV-H for 4.1.11
1569421 - The package redhat-virtualization-host-image-update-placeholder is wrong on rhvh-4.1-20180417.0
1569823 - Include wrong glusterfs in redhat-virtualization-host-4.1-20180419.0

6. Package List:

Red Hat Virtualization 4 Hypervisor for RHEL 7:

Source:
redhat-virtualization-host-4.1-20180426.0.el7_5.src.rpm

noarch:
redhat-virtualization-host-image-update-4.1-20180426.0.el7_5.noarch.rpm

RHEL 7-based RHEV-H for RHEV 4 (build requirements):

Source:
redhat-release-virtualization-host-4.1-11.0.el7.src.rpm

noarch:
redhat-virtualization-host-image-update-placeholder-4.1-11.0.el7.noarch.rpm

x86_64:
redhat-release-virtualization-host-4.1-11.0.el7.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-2018-1088
https://access.redhat.com/security/updates/classification/#important

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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