Issued:
2021-07-22
Updated:
2021-07-22

RHSA-2021:2736 - Important: Red Hat Virtualization Host security and bug fix update [ovirt-4.4.7]

Synopsis

Important: Red Hat Virtualization Host security and bug fix update [ovirt-4.4.7]

Type/Severity

Security Advisory Important

Topic

An update for imgbased, redhat-release-virtualization-host, and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 8.

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 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):

  • kernel: size_t-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909)

  • systemd: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash (CVE-2021-33910)

  • kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan (CVE-2021-33034)

  • ansible: multiple modules expose secured values (CVE-2021-3447)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

  • The redhat-release-virtualization-host package no longer requires vdsm-hooks. In this release, the installation of vdsm-hooks is not mandatory for the Red Hat Virtualization Host. (BZ#1976095)

  • Previously, rhsmcertd was not enabled by default on the Red Hat Virtualization Host. As a result, the systems did not regularly report to RHSM while the subscription-manager reported no obvious issues and repositories were properly enabled. In this release, rhsmcertd is enabled by default in RHVH, and as a result, RHSM now receives reports regularly. (BZ#1958145)

  • In this release, the Red Hat Virtualization Host has been rebased on top of the RHEL 8.4.0 Batch #1 update. For more information, see the RHEL release notes. (BZ#1957242)

  • Red Hat Virtualization Host now includes an updated scap-security-guide-rhv which allows you to apply a PCI DSS security profile to the system during installation, (BZ#1883793)

Solution

For details on how to apply this update, which includes the changes described in this advisory, 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-image-update-placeholder-4.4.7-3.el8ev.noarch.rpm
  • redhat-release-virtualization-host-4.4.7-3.el8ev.x86_64.rpm
  • scap-security-guide-0.1.54-2.el8ev.src.rpm
  • vhostmd-debugsource-1.1-5.el8.x86_64.rpm
  • vhostmd-1.1-5.el8.x86_64.rpm
  • vm-dump-metrics-1.1-5.el8.x86_64.rpm
  • vhostmd-1.1-5.el8.src.rpm
  • fcoe-utils-debugsource-1.0.33-3.git848bcc6.el8.x86_64.rpm
  • imgbased-1.2.21-1.el8ev.noarch.rpm
  • scap-security-guide-rhv-0.1.54-2.el8ev.noarch.rpm
  • imgbased-1.2.21-1.el8ev.src.rpm
  • redhat-virtualization-host-image-update-4.4.7-20210715.1.el8_4.x86_64.rpm
  • vhostmd-debuginfo-1.1-5.el8.x86_64.rpm
  • python3-imgbased-1.2.21-1.el8ev.noarch.rpm
  • fcoe-utils-1.0.33-3.git848bcc6.el8.x86_64.rpm
  • fcoe-utils-1.0.33-3.git848bcc6.el8.src.rpm
  • redhat-release-virtualization-host-4.4.7-3.el8ev.src.rpm
  • redhat-virtualization-host-4.4.7-20210715.1.el8_4.src.rpm
  • vm-dump-metrics-debuginfo-1.1-5.el8.x86_64.rpm
  • vm-dump-metrics-devel-1.1-5.el8.x86_64.rpm
  • fcoe-utils-debuginfo-1.0.33-3.git848bcc6.el8.x86_64.rpm

Fixes

CVEs

References

Additional information