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Red Hat: RHSA-2022-5439 Important: RHV-H Security Update (Critical)

red hat
Calendar Grey July 1, 2022
Dist Redhat Esm H88
Important security patch for Red Hat virtualization server released, tackling various security flaws. Urgent action required.
An update for redhat-release-virtualization-host and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7

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

Summary

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) from Bugzilla:
* zlib: A flaw found in zlib when compressing (not decompressing) certain inputs (CVE-2018-25032)
* gzip: arbitrary-file-write vulnerability (CVE-2022-1271)
* rsyslog: Heap-based overflow in TCP syslog server (CVE-2022-24903)
* kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root (CVE-2022-1966)
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) from Bugzilla:
* RHV-H 4.3 has been rebased on RHEL 7.9 batch (BZ#2084444)

Topics%20covered

Topics Covered

security advisory critical RHV-H Red Hat Virtualization arbitrary-file-write

References

https://access.redhat.com/security/cve/CVE-2018-25032 https://access.redhat.com/security/cve/CVE-2022-1271 https://access.redhat.com/security/cve/CVE-2022-1966 https://access.redhat.com/security/cve/CVE-2022-24903 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Virtualization 4 Hypervisor for RHEL 7:
Source: redhat-virtualization-host-4.3.23-20220622.0.el7_9.src.rpm
noarch: redhat-virtualization-host-image-update-4.3.23-20220622.0.el7_9.noarch.rpm
RHEL 7-based RHEV-H for RHEV 4 (build requirements):
Source: redhat-release-virtualization-host-4.3.23-1.el7ev.src.rpm redhat-virtualization-host-4.3.23-20220622.0.el7_9.src.rpm redhat-virtualization-host-productimg-4.3.23-1.el7.src.rpm
noarch: redhat-virtualization-host-image-update-4.3.23-20220622.0.el7_9.noarch.rpm redhat-virtualization-host-image-update-placeholder-4.3.23-1.el7ev.noarch.rpm
x86_64: redhat-release-virtualization-host-4.3.23-1.el7ev.x86_64.rpm redhat-virtualization-host-productimg-4.3.23-1.el7.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


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:5439-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2022:5439
Issue date: 2022-06-30

Topic

An update for redhat-release-virtualization-host andredhat-virtualization-host is now available for Red Hat Virtualization 4for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory critical RHV-H Red Hat Virtualization arbitrary-file-write

Relevant Releases Architectures

RHEL 7-based RHEV-H for RHEV 4 (build requirements) - noarch, x86_64

Red Hat Virtualization 4 Hypervisor for RHEL 7 - noarch

Bugs Fixed

2067945 - CVE-2018-25032 zlib: A flaw found in zlib when compressing (not decompressing) certain inputs

2073310 - CVE-2022-1271 gzip: arbitrary-file-write vulnerability

2081353 - CVE-2022-24903 rsyslog: Heap-based overflow in TCP syslog server

2084444 - Rebase RHV-H 4.3 on RHEL 7.9 batch

2092427 - CVE-2022-1966 kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root

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