(RHSA-2021:3235) Important: Red Hat Virtualization Host security and bug fix update [ovirt-4.4.7]

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):

• edk2: remote buffer overflow in IScsiHexToBin function in NetworkPkg/IScsiDxe ()

• kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)

• kernel: race condition in net/can/bcm.c leads to local privilege escalation (CVE-2021-3609)

• sssd: shell command injection in sssctl (CVE-2021-3621)

• kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)

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):

• Rebase package(s) to version: 1.2.23

Highlights, important fixes, or notable enhancements:

• imgbase should not copy the selinux binary policy file (BZ# 1979624) (BZ#1989397)

• RHV-H has been rebased on Red Hat Enterprise Linux 8.4 Batch #2. (BZ#1975177)