Synopsis

Moderate: Red Hat Virtualization security, bug fix, and enhancement update

Type/Severity

Security Advisory: Moderate

Topic

An update for 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 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.

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.

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).

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

Affected Products

• Red Hat Virtualization 4 for RHEL 7 x86_64
• Red Hat Virtualization Host 4 x86_64

Fixes

• BZ - 1596528 - CVE-2018-10874 ansible: Inventory variables are loaded from current working directory when running ad-hoc command that can lead to code execution
• BZ - 1596533 - CVE-2018-10875 ansible: ansible.cfg is being read from current working directory allowing possible code execution
• BZ - 1596545 - Upgrade imgbased to 1.0.21

CVEs

• CVE-2018-10874
• CVE-2018-10875

References

• https://access.redhat.com/security/updates/classification/#moderate

Red Hat Virtualization 4 for RHEL 7

SRPM
imgbased-1.0.22-1.el7ev.src.rpm	SHA-256: 102e58803b56a12f4061b7168eb228ab3cbc9359b4c7e2851b9629b9d21640d6
redhat-release-virtualization-host-4.2-5.0.el7.src.rpm	SHA-256: b5e1b4185afdabbc95f0f14f7854c79fa146690dc5ea35ff5c9986e7b01ad9dc
x86_64
imgbased-1.0.22-1.el7ev.noarch.rpm	SHA-256: 4c626b64eab7dc70274634358b9442ea54b5e38c7a795e4498efd3a7643eb954
python-imgbased-1.0.22-1.el7ev.noarch.rpm	SHA-256: 176a65a63d9a75e8d1fc2790fddf55f0993161fd61ca6ace8d4dda6dd0181101
redhat-release-virtualization-host-4.2-5.0.el7.x86_64.rpm	SHA-256: 052b76119f493222647bd6d63e7855be188511e9ac243f5b71547b9ddfe8053a
redhat-virtualization-host-image-update-placeholder-4.2-5.0.el7.noarch.rpm	SHA-256: f977f6176913a9230411c4569c5ac3781aab5679e00ba9716ebd98221a70a73a

Red Hat Virtualization Host 4

SRPM
redhat-virtualization-host-4.2-20180724.0.el7_5.src.rpm	SHA-256: 5dafae32ec8ba33a20c47ccc1a7abc08085377f7ecf76fe977613b2c5a90732a
x86_64
redhat-virtualization-host-image-update-4.2-20180724.0.el7_5.noarch.rpm	SHA-256: a130902ee90328e3d358d998e20ded7948d145b459fc7fc037d46643b3ff8123