Synopsis

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

Type/Severity

Security Advisory: Important

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 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

Red Hat Virtualization 4 for RHEL 7

SRPM
imgbased-1.0.24-1.el7ev.src.rpm	SHA-256: 20a90cd72e67fb5346305c0814e28a93b7608bcebd7bfc57185e759d053976f7
redhat-release-virtualization-host-4.2-6.0.el7.src.rpm	SHA-256: b7b808af472783783b913090ff843fc90fd991e471818af9448e7db98f1c2199
x86_64
imgbased-1.0.24-1.el7ev.noarch.rpm	SHA-256: ca92b32dd24123e2532b980aab693d239574cb74e56d7c84065413d2e6072378
python-imgbased-1.0.24-1.el7ev.noarch.rpm	SHA-256: 28d7cf009cb673f7988fc0068b1d32c0e265f63bf1f3b82aabfc6f9c9837ac24
redhat-release-virtualization-host-4.2-6.0.el7.x86_64.rpm	SHA-256: 3a56571f89d4d26c42ab21d74b349b1a48983bc5ee9010a8518caec6c081c06f
redhat-virtualization-host-image-update-placeholder-4.2-6.0.el7.noarch.rpm	SHA-256: f43ba5ba0e01786e33cc84f0d4852732cecf478e83ab4435bcdd69e1a2bdc27e

Red Hat Virtualization Host 4

SRPM
redhat-virtualization-host-4.2-20180828.2.el7_5.src.rpm	SHA-256: 3b13acf83474e73ea9b21a823e761e6214c2764d8d44562ed646ffb4bcabbe86
x86_64
redhat-virtualization-host-image-update-4.2-20180828.2.el7_5.noarch.rpm	SHA-256: cbaef32bc6716b7b9dc13f52af0550118d9359144d1bedeeff843a4160d7e96e