RHSA-2022:0540 - Security Advisory

Topic

An update for 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.

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.

Security Fix(es):

• polkit: Local privilege escalation in pkexec due to incorrect handling of argument vector (CVE-2021-4034)
• kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL (CVE-2021-4155)
• aide: heap-based buffer overflow on outputs larger than B64_BUF (CVE-2021-45417)
• kernel: fs_context: heap overflow in legacy parameter handling (CVE-2022-0185)

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):

• Rebased wget package and its dependencies for the same version shipped with recent RHEL. (BZ#2030082)

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 - 2025869 - CVE-2021-4034 polkit: Local privilege escalation in pkexec due to incorrect handling of argument vector
• BZ - 2030082 - Failed dependencies occur during install wget package from rhvh optional channel.
• BZ - 2034685 - RHVH 4.4.9 - host upgrade fails with error for package libsmbclient
• BZ - 2034813 - CVE-2021-4155 kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL
• BZ - 2040358 - CVE-2022-0185 kernel: fs_context: heap overflow in legacy parameter handling
• BZ - 2041489 - CVE-2021-45417 aide: heap-based buffer overflow on outputs larger than B64_BUF

CVEs

• CVE-2021-4034
• CVE-2021-4155
• CVE-2021-45417
• CVE-2022-0185

References

• https://access.redhat.com/security/updates/classification/#important
• https://access.redhat.com/security/vulnerabilities/RHSB-2022-001