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Red Hat: RHSA-2022-0540-01 Critical: Local Privilege Escalation Issue

red hat
Calendar Grey February 15, 2022
Dist Redhat Esm H88
Critical update for Red Hat Virtualization Hosts resolves numerous CVEs, introducing major security enhancements.
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

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

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.
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)

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow local privilege escalation heap overflow virtualization xfs leak

References

https://access.redhat.com/security/cve/CVE-2021-4034 https://access.redhat.com/security/cve/CVE-2021-4155 https://access.redhat.com/security/cve/CVE-2021-45417 https://access.redhat.com/security/cve/CVE-2022-0185 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 8:
Source: libmetalink-0.1.3-7.el8.src.rpm redhat-virtualization-host-4.4.10-202202081536_8.5.src.rpm wget-1.19.5-10.el8.src.rpm
x86_64: libmetalink-0.1.3-7.el8.x86_64.rpm libmetalink-debuginfo-0.1.3-7.el8.x86_64.rpm libmetalink-debugsource-0.1.3-7.el8.x86_64.rpm libmetalink-devel-0.1.3-7.el8.x86_64.rpm redhat-virtualization-host-image-update-4.4.10-202202081536_8.5.x86_64.rpm wget-1.19.5-10.el8.x86_64.rpm wget-debuginfo-1.19.5-10.el8.x86_64.rpm wget-debugsource-1.19.5-10.el8.x86_64.rpm
RHEL 8-based RHEV-H for RHEV 4 (build requirements):
Source: redhat-release-virtualization-host-4.4.10-1.el8ev.src.rpm
noarch: redhat-virtualization-host-image-update-placeholder-4.4.10-1.el8ev.noarch.rpm
x86_64: redhat-release-virtualization-host-4.4.10-1.el8ev.x86_64.rpm redhat-release-virtualization-host-content-4.4.10-1.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


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:0540-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0540
Issue date: 2022-02-15

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.

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow local privilege escalation heap overflow virtualization xfs leak

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

2025869 - CVE-2021-4034 polkit: Local privilege escalation in pkexec due to incorrect handling of argument vector

2030082 - Failed dependencies occur during install wget package from rhvh optional channel.

2034685 - RHVH 4.4.9 - host upgrade fails with error for package libsmbclient

2034813 - CVE-2021-4155 kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL

2040358 - CVE-2022-0185 kernel: fs_context: heap overflow in legacy parameter handling

2041489 - CVE-2021-45417 aide: heap-based buffer overflow on outputs larger than B64_BUF

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