RHSA-2022:5439 — Security Advisory

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.

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.

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)