RedHat: RHSA-2022-0841:01 Important: Red Hat Virtualization Host security
Summary
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: improper initialization of the "flags" member of the new
pipe_buffer (CVE-2022-0847)
* kernel: Use After Free in unix_gc() which could result in a local
privilege escalation (CVE-2021-0920)
* kernel: local privilege escalation by exploiting the fsconfig syscall
parameter leads to container breakout (CVE-2021-4154)
* kernel: possible privileges escalation due to missing TLB flush
(CVE-2022-0330)
* kernel: remote stack overflow via kernel panic on systems using TIPC may
lead to DoS (CVE-2022-0435)
* kernel: failing usercopy allows for use-after-free exploitation
(CVE-2022-22942)
* cyrus-sasl: failure to properly escape SQL input allows an attacker to
execute arbitrary SQL commands (CVE-2022-24407)
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-2021-0920 https://access.redhat.com/security/cve/CVE-2021-4154 https://access.redhat.com/security/cve/CVE-2022-0330 https://access.redhat.com/security/cve/CVE-2022-0435 https://access.redhat.com/security/cve/CVE-2022-0847 https://access.redhat.com/security/cve/CVE-2022-22942 https://access.redhat.com/security/cve/CVE-2022-24407 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/RHSB-2022-002
Package List
Red Hat Virtualization 4 Hypervisor for RHEL 8:
Source:
redhat-virtualization-host-4.4.10-202203101736_8.5.src.rpm
x86_64:
redhat-virtualization-host-image-update-4.4.10-202203101736_8.5.x86_64.rpm
RHEL 8-based RHEV-H for RHEV 4 (build requirements):
Source:
redhat-release-virtualization-host-4.4.10-2.el8ev.src.rpm
noarch:
redhat-virtualization-host-image-update-placeholder-4.4.10-2.el8ev.noarch.rpm
x86_64:
redhat-release-virtualization-host-4.4.10-2.el8ev.x86_64.rpm
redhat-release-virtualization-host-content-4.4.10-2.el8ev.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 8.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 8-based RHEV-H for RHEV 4 (build requirements) - noarch, x86_64
Red Hat Virtualization 4 Hypervisor for RHEL 8 - x86_64
Bugs Fixed
2031930 - CVE-2021-0920 kernel: Use After Free in unix_gc() which could result in a local privilege escalation
2034514 - CVE-2021-4154 kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout
2042404 - CVE-2022-0330 kernel: possible privileges escalation due to missing TLB flush
2044809 - CVE-2022-22942 kernel: failing usercopy allows for use-after-free exploitation
2048738 - CVE-2022-0435 kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS
2055326 - CVE-2022-24407 cyrus-sasl: failure to properly escape SQL input allows an attacker to execute arbitrary SQL commands
2060795 - CVE-2022-0847 kernel: improper initialization of the "flags" member of the new pipe_buffer
