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RedHat: RHSA-2018-2321-01 Moderate: Code Execution Risk in Virtualization

red hat
Calendar Grey July 31, 2018
Scroller Redhat
A minor security patch for Red Hat Virtualization 4 has been released, focusing on vulnerabilities found in the redhat-virtualization-host components.
An update for 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.
The following packages have been upgraded to a later upstream version: imgbased (1.0.22), redhat-release-virtualization-host (4.2), redhat-virtualization-host (4.2). (BZ#1596545, BZ#1607722, BZ#1607723)
Security Fix(es):
* ansible: Inventory variables are loaded from current working directory when running ad-hoc command that can lead to code execution (CVE-2018-10874)
* ansible: ansible.cfg is being read from current working directory allowing possible code execution (CVE-2018-10875)
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.
Red Hat would like to thank Michael Scherer (OSAS) for reporting CVE-2018-10874. The CVE-2018-10875 issue was discovered by Brian Coca (Red Hat).

Topics%20covered

Topics Covered

security advisory security update code execution security fix Red Hat Enterprise Linux Moderate Red Hat Virtualization

References

https://access.redhat.com/security/cve/CVE-2018-10874 https://access.redhat.com/security/cve/CVE-2018-10875 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Virtualization 4 Hypervisor for RHEL 7:
Source: redhat-virtualization-host-4.2-20180724.0.el7_5.src.rpm
noarch: redhat-virtualization-host-image-update-4.2-20180724.0.el7_5.noarch.rpm
RHEL 7-based RHEV-H for RHEV 4 (build requirements):
Source: imgbased-1.0.22-1.el7ev.src.rpm redhat-release-virtualization-host-4.2-5.0.el7.src.rpm
noarch: imgbased-1.0.22-1.el7ev.noarch.rpm python-imgbased-1.0.22-1.el7ev.noarch.rpm redhat-virtualization-host-image-update-placeholder-4.2-5.0.el7.noarch.rpm
x86_64: redhat-release-virtualization-host-4.2-5.0.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


Advisory ID: RHSA-2018:2321-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2321
Issue date: 2018-07-31

Topic

An update for redhat-virtualization-host is now available for Red HatVirtualization 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 security update code execution security fix Red Hat Enterprise Linux Moderate Red Hat Virtualization

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

1596528 - CVE-2018-10874 ansible: Inventory variables are loaded from current working directory when running ad-hoc command that can lead to code execution

1596533 - CVE-2018-10875 ansible: ansible.cfg is being read from current working directory allowing possible code execution

1596545 - Upgrade imgbased to 1.0.21

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