RHSA-2022:4896 - Security Advisory

Topic

An update for imgbased, 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.

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: use-after-free in RDMA listen() (CVE-2021-4028)
• kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)
• kernel: heap out of bounds write in nf_dup_netdev.c (CVE-2022-25636)
• openssl: Infinite loop in BN_mod_sqrt() reachable when parsing certificates (CVE-2022-0778)
• 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)

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.

Bug Fixes:

• elfutils package has been update within RHV-H Channel to match the same version released in RHEL (BZ#2038081)
• Rebase package(s) to version 1.2.24

For highlights, important fixes, or notable enhancements: see bugs in "Depend On". (BZ#2057338)

• Rebase package(s) to version: 4.5.0

Highlights, important fixes, or notable enhancements: (BZ#2057342)

• Rebase package(s) to version anaconda-33.16.6.6-1.el8

For highlights and important bug fixes: include UI change for blocking installation if root password is not set. (BZ#1899821)

• Red hat Virtualization Host has been rebased on Red Hat Enterprise Linux 8.6 (BZ#1997074)
• Previously, concurrent executions of LV refresh (lvchange) failed. This hindered simultaneous starts of virtual machines that have thin-provisioned disks based on the same disk on a block storage domain.

In this release, concurrent execution of LV refresh has been fixed in LVM2. (BZ#2020497)

• Red Hat Virtualization Host has been rebased on latest Ceph 4.3 (BZ#2090138)
• In previous releases systemtap package could have been installed on top of RHV-H from RHV-H channel. With 4.4 SP1 systemtap package installation is not supported anymore (BZ#2052963)

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

Affected Products

• Red Hat Virtualization 4 for RHEL 8 x86_64
• Red Hat Virtualization Host 4 for RHEL 8 x86_64

Fixes

• BZ - 1899821 - RHVH 4.4.3 anaconda UI proceeds to begin installation without root password provided
• BZ - 1997074 - Rebase RHV-H on RHEL 8.6
• BZ - 2020497 - Need to include lvm2-2.03.14-1.el8
• BZ - 2027201 - CVE-2021-4028 kernel: use-after-free in RDMA listen()
• BZ - 2029923 - CVE-2021-4083 kernel: fget: check that the fd still exists after getting a ref to it
• BZ - 2038081 - Upgrade elfutils to elfutils-0.186-1.el8
• BZ - 2052963 - [DOC] systemtap support dropped in RHV-H 4.4 SP1
• BZ - 2056334 - [RHVH-4.5.0] On UEFI machines, RHVH enters emergency mode when upgraded to 4.5.0
• BZ - 2056745 - sssd-ad can't be installed due to missing deps libsss_idmap
• BZ - 2056830 - CVE-2022-25636 kernel: heap out of bounds write in nf_dup_netdev.c
• BZ - 2057338 - Upgrade imgbased to 1.2.24
• BZ - 2057342 - Upgrade redhat-release-virtualization-host to 4.5.0
• BZ - 2062202 - CVE-2022-0778 openssl: Infinite loop in BN_mod_sqrt() reachable when parsing certificates
• BZ - 2067945 - CVE-2018-25032 zlib: A flaw found in zlib when compressing (not decompressing) certain inputs
• BZ - 2073310 - CVE-2022-1271 gzip: arbitrary-file-write vulnerability
• BZ - 2081353 - CVE-2022-24903 rsyslog: Heap-based overflow in TCP syslog server
• BZ - 2086834 - Cannot install sssd daemon needed for AD Authentication
• BZ - 2090138 - Rebase RHV-H on Ceph 4.3

CVEs

• CVE-2018-25032
• CVE-2021-4028
• CVE-2021-4083
• CVE-2022-0778
• CVE-2022-1271
• CVE-2022-24903
• CVE-2022-25636

References

• https://access.redhat.com/security/updates/classification/#important