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Red Hat 7 Critical Advisory RHSA-2018:1275 Privilege Escalation

red hat
Calendar Grey May 2, 2018
Scroller Redhat
Hash: SHA1 Red Hat Security Advisory Synopsis: Important: redhat-virtualization-host security update
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

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

Summary

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).

Topics%20covered

Topics Covered

security advisory red hat privilege escalation security impact glusterfs virtualization host

References

https://access.redhat.com/security/cve/CVE-2018-1088 https://access.redhat.com/security/updates/classification#important

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


Severity
important
Lowest
Low
Medium
High
Critical

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

Topic

An update for redhat-release-virtualization-host andredhat-virtualization-host is now available for Red Hat Virtualization 4for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory red hat privilege escalation security impact glusterfs virtualization host

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

Bugs Fixed

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

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