(RHSA-2022:5439) Important: RHV-H security update (redhat-virtualization-host) 4.3.23

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)