RHSA-2018:2626 - Security Advisory

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 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.

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):

• yum-utils: reposync: improper path validation may lead to directory traversal (CVE-2018-10897)

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 Jay Grizzard (Clover Network) and Aaron Levy (Clover Network) for reporting this issue.

Bug fix:

• This update rebases imgbased to version 1.0.24. This update fixes the issue with removing broken symlinks when synchronizing layers. (BZ#1598781) (BZ#1622025)

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 for RHEL 7 x86_64

Fixes

• BZ - 1598781 - Upgrading RHV-H is bringing back libvirt network file which causes issues in starting of VM
• BZ - 1600221 - CVE-2018-10897 yum-utils: reposync: improper path validation may lead to directory traversal
• BZ - 1616254 - [Tracker] RHV-H tracker for RHVH 4.2.6
• BZ - 1622025 - Upgrade imgbased to 1.0.24

CVEs

• CVE-2018-10897

References

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