Issued:
2021-06-22
Updated:
2021-06-22

RHSA-2021:2519 - Important: RHV-H security update redhat-virtualization-host - 4.3.16

Synopsis

Important: RHV-H security update (redhat-virtualization-host) 4.3.16

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. 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):

  • glib: integer overflow in g_bytes_new function on 64-bit platforms due to an implicit cast from 64 bits to 32 bits (CVE-2021-27219)

  • hw: vt-d related privilege escalation (CVE-2020-24489)

  • dhcp: stack-based buffer overflow when parsing statements with colon-separated hex digits in config or lease files in dhcpd and dhclient (CVE-2021-25217)

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

ProductVersionArch
Red Hat Virtualization4x86_64
Red Hat Virtualization Host4x86_64

Updated Packages

  • redhat-virtualization-host-4.3.16-20210615.0.el7_9.src.rpm
  • redhat-virtualization-host-image-update-placeholder-4.3.16-1.el7ev.noarch.rpm
  • redhat-release-virtualization-host-4.3.16-1.el7ev.src.rpm
  • redhat-release-virtualization-host-4.3.16-1.el7ev.x86_64.rpm
  • redhat-virtualization-host-image-update-4.3.16-20210615.0.el7_9.noarch.rpm

Fixes

CVEs

References

Additional information