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Red Hat Product Errata RHSA-2021:4750 - Security Advisory
Issued:
2021-11-19
Updated:
2021-11-19

RHSA-2021:4750 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: Red Hat Virtualization Host security and bug fix update [ovirt-4.4.9] 0-day

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for 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.

Security Fix(es):

  • kernel: out-of-bounds write due to a heap buffer overflow in __hidinput_change_resolution_multipliers() of hid-input.c (CVE-2021-0512)
  • Ansible: ansible-connection module discloses sensitive info in traceback error message (CVE-2021-3620)
  • kernel: Insufficient validation of user-supplied sizes for the MSG_CRYPTO message type (CVE-2021-43267)
  • libssh: NULL pointer dereference in sftpserver.c if ssh_buffer_new returns NULL (CVE-2020-16135)

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.

Bug Fix(es):

  • Red Hat Virtualization Host now includes packages from Red Hat Enterprise Linux 8.5. (BZ#1958101)
  • Red Hat Virtualization Host now includes packages from RHGS-3.5.z on RHEL-8 Batch #5. (BZ#1975175)
  • Red Hat Virtualization Host now includes the packages needed for using Managed Block Devices via cinderlib. (BZ#1983021)
  • Red Hat Virtualization Host now includes openvswitch related packages from Fast Data Path 21.G release. (BZ#1998104)
  • Previously it was not possible to upgrade RHVH to version 4.4.8 when custom VDSM hooks were installed on RHVH. This was caused by the VDSM hooks dependency on the concrete version of VDSM. The current release allows users to maintain the VDSM dependency manually. In other words, if you want to upgrade from VDSM X.Y.Z to version A.B.C, you must upgrade all VDSM hooks to the same A.B.C version. (BZ#2004469)

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

  • Red Hat Virtualization 4 for RHEL 8 x86_64
  • Red Hat Virtualization Host 4 for RHEL 8 x86_64

Fixes

  • BZ - 1862456 - CVE-2020-16135 libssh: NULL pointer dereference in sftpserver.c if ssh_buffer_new returns NULL
  • BZ - 1953685 - The RHVH iso should not always remove the /root/anaconda-ks.cfg file.
  • BZ - 1958101 - Rebase RHV-H 4.4.9 on RHEL 8.5
  • BZ - 1974491 - CVE-2021-0512 kernel: out-of-bounds write due to a heap buffer overflow in __hidinput_change_resolution_multipliers() of hid-input.c
  • BZ - 1975175 - Rebase RHV-H 4.4.9 on RHGS-3.5.z on RHEL-8 Batch #5
  • BZ - 1975767 - CVE-2021-3620 Ansible: ansible-connection module discloses sensitive info in traceback error message
  • BZ - 1983021 - [cinderlib] Provide cinderlib prerequisites in RHV-H
  • BZ - 1998104 - Rebase RHV-H on FDP 21.G
  • BZ - 2004469 - [RHV 4.4.8] Unable to upgrade RHVH if vdsm-hook-ethtool-options is installed
  • BZ - 2020362 - CVE-2021-43267 kernel: Insufficient validation of user-supplied sizes for the MSG_CRYPTO message type
  • BZ - 2024360 - RHV-H sssd-proxy installation fails due to higher versioned packages of sssd-* in repository then RHV 4.4.8 uses.

CVEs

  • CVE-2020-16135
  • CVE-2021-0512
  • CVE-2021-3620
  • CVE-2021-43267

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Virtualization 4 for RHEL 8

SRPM
redhat-release-virtualization-host-4.4.9-2.el8ev.src.rpm SHA-256: 8934ece308ef7bacd6edc1f9d7d84270c6528069eda93ae4dc122c0401b8e796
x86_64
redhat-release-virtualization-host-4.4.9-2.el8ev.x86_64.rpm SHA-256: 864305ab5733d575dc1843f4f04b0e354040160163d548ee75fe80e53c342828
redhat-release-virtualization-host-content-4.4.9-2.el8ev.x86_64.rpm SHA-256: a198af6a1eac57d0559798cb0a3d5b97d0a73a09acdfd2866dcdffc9e7b66410
redhat-virtualization-host-image-update-placeholder-4.4.9-2.el8ev.noarch.rpm SHA-256: 6b878bfeeb2dde4abf2b4b01bbd1afb8285306b9707e434a5adde2dad067da1a

Red Hat Virtualization Host 4 for RHEL 8

SRPM
redhat-virtualization-host-4.4.9-202111172338_8.5.src.rpm SHA-256: b7d55cafa4bc172f05329ff7d153bf58fec011a4923316fe9f6f7c8b402fa7bd
x86_64
redhat-virtualization-host-image-update-4.4.9-202111172338_8.5.x86_64.rpm SHA-256: d81a441c0838f3225490e388dc2ac42fd395c2253b63cb178dd255f1047bfdb4

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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