RedHat: RHSA-2022-0443:06 Important: RHV-H security update
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):
* polkit: Local privilege escalation in pkexec due to incorrect handling of
argument vector (CVE-2021-4034)
* samba: Active Directory (AD) domain user could become root on domain
members (CVE-2020-25717)
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.
Summary
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
References
https://access.redhat.com/security/cve/CVE-2020-25717 https://access.redhat.com/security/cve/CVE-2021-4034 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/RHSB-2022-001
Package List
Red Hat Virtualization 4 Hypervisor for RHEL 7:
Source:
redhat-virtualization-host-4.3.21-20220126.0.el7_9.src.rpm
noarch:
redhat-virtualization-host-image-update-4.3.21-20220126.0.el7_9.noarch.rpm
RHEL 7-based RHEV-H for RHEV 4 (build requirements):
Source:
redhat-release-virtualization-host-4.3.21-1.el7ev.src.rpm
redhat-virtualization-host-4.3.21-20220126.0.el7_9.src.rpm
noarch:
redhat-virtualization-host-image-update-4.3.21-20220126.0.el7_9.noarch.rpm
redhat-virtualization-host-image-update-placeholder-4.3.21-1.el7ev.noarch.rpm
x86_64:
redhat-release-virtualization-host-4.3.21-1.el7ev.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/
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.
Topic
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
2019672 - CVE-2020-25717 samba: Active Directory (AD) domain user could become root on domain members2025869 - CVE-2021-4034 polkit: Local privilege escalation in pkexec due to incorrect handling of argument vector