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Red Hat Security Advisory

Synopsis:          Important: Red Hat Virtualization Host security and bug fix update [ovirt-4.4.10] Async #1
Advisory ID:       RHSA-2022:0841-01
Product:           Red Hat Virtualization
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:0841
Issue date:        2022-03-14
CVE Names:         CVE-2021-0920 CVE-2021-4154 CVE-2022-0330
                   CVE-2022-0435 CVE-2022-0847 CVE-2022-22942
                   CVE-2022-24407
====================================================================
1. Summary:

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.

2. Relevant releases/architectures:

RHEL 8-based RHEV-H for RHEV 4 (build requirements) - noarch, x86_64
Red Hat Virtualization 4 Hypervisor for RHEL 8 - x86_64

3. 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: improper initialization of the "flags" member of the new
pipe_buffer (CVE-2022-0847)

* kernel: Use After Free in unix_gc() which could result in a local
privilege escalation (CVE-2021-0920)

* kernel: local privilege escalation by exploiting the fsconfig syscall
parameter leads to container breakout (CVE-2021-4154)

* kernel: possible privileges escalation due to missing TLB flush
(CVE-2022-0330)

* kernel: remote stack overflow via kernel panic on systems using TIPC may
lead to DoS (CVE-2022-0435)

* kernel: failing usercopy allows for use-after-free exploitation
(CVE-2022-22942)

* cyrus-sasl: failure to properly escape SQL input allows an attacker to
execute arbitrary SQL commands (CVE-2022-24407)

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.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

2031930 - CVE-2021-0920 kernel: Use After Free in unix_gc() which could result in a local privilege escalation
2034514 - CVE-2021-4154 kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout
2042404 - CVE-2022-0330 kernel: possible privileges escalation due to missing TLB flush
2044809 - CVE-2022-22942 kernel: failing usercopy allows for use-after-free exploitation
2048738 - CVE-2022-0435 kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS
2055326 - CVE-2022-24407 cyrus-sasl: failure to properly escape SQL input allows an attacker to execute arbitrary SQL commands
2060795 - CVE-2022-0847 kernel: improper initialization of the "flags" member of the new pipe_buffer

6. Package List:

Red Hat Virtualization 4 Hypervisor for RHEL 8:

Source:
redhat-virtualization-host-4.4.10-202203101736_8.5.src.rpm

x86_64:
redhat-virtualization-host-image-update-4.4.10-202203101736_8.5.x86_64.rpm

RHEL 8-based RHEV-H for RHEV 4 (build requirements):

Source:
redhat-release-virtualization-host-4.4.10-2.el8ev.src.rpm

noarch:
redhat-virtualization-host-image-update-placeholder-4.4.10-2.el8ev.noarch.rpm

x86_64:
redhat-release-virtualization-host-4.4.10-2.el8ev.x86_64.rpm
redhat-release-virtualization-host-content-4.4.10-2.el8ev.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2021-0920
https://access.redhat.com/security/cve/CVE-2021-4154
https://access.redhat.com/security/cve/CVE-2022-0330
https://access.redhat.com/security/cve/CVE-2022-0435
https://access.redhat.com/security/cve/CVE-2022-0847
https://access.redhat.com/security/cve/CVE-2022-22942
https://access.redhat.com/security/cve/CVE-2022-24407
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/RHSB-2022-002

8. Contact:

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

Copyright 2022 Red Hat, Inc.
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