RHSA-2021:1051 - 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 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. 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):

• lldp/openvswitch: denial of service via externally triggered memory leak (CVE-2020-27827)

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.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/2974891

Affected Products

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

Fixes

• BZ - 1921438 - CVE-2020-27827 lldp/openvswitch: denial of service via externally triggered memory leak
• BZ - 1924062 - Rebase RHV-H 4.3 EUS on RHEL 7.9.z #4
• BZ - 1932859 - Rebase RHV-H 4.3.14 on FDP 2.11 (21B)
• BZ - 1940841 - Include updated gluster-ansible-features in RHV-H 4.3

CVEs

• CVE-2020-27827

References

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