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Alerts This Week
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Red Hat Enterprise Linux 8.2 RHSA-2022-0820-01 Critical: Kernel Update

red hat
Calendar Grey March 10, 2022
Dist Redhat Esm H88
An essential kernel patch for Red Hat Enterprise Linux 8.2 tackling significant security vulnerabilities while introducing improvements.
An update for kernel is now available for Red Hat Enterprise Linux 8.2 Extended Update Support

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
The following packages have been upgraded to a later upstream version: kernel (4.18.0). (BZ#2036933)
Security Fix(es):
* kernel: improper initialization of the "flags" member of the new pipe_buffer (CVE-2022-0847)
* kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)
* kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)
* kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)
* kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)
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 Fix(es):
* [Intel 8.3 Bug] ICX Whitley: PCIe - kernel panic with AER-INJECT (BZ#2040309)
* [ESXi][RHEL8] A task is stuck waiting for the completion of the vmci_resouce releasing upon the balloon reset. [None8.2.0.z] (BZ#2052200)

Topics%20covered

Topics Covered

security advisory security issue update critical bug fix Red Hat Enterprise Linux kernel

References

https://access.redhat.com/security/cve/CVE-2021-4083 https://access.redhat.com/security/cve/CVE-2022-0330 https://access.redhat.com/security/cve/CVE-2022-0492 https://access.redhat.com/security/cve/CVE-2022-0847 https://access.redhat.com/security/cve/CVE-2022-22942 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/security/vulnerabilities/RHSB-2022-002

Package List

Red Hat Enterprise Linux BaseOS EUS (v. 8.2):
Source: kernel-4.18.0-193.79.1.el8_2.src.rpm
aarch64: bpftool-4.18.0-193.79.1.el8_2.aarch64.rpm bpftool-debuginfo-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-core-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-cross-headers-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-debug-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-debug-core-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-debug-debuginfo-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-debug-devel-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-debug-modules-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-debug-modules-extra-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-debuginfo-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-devel-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-headers-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-modules-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-modules-extra-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-tools-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-tools-debuginfo-4.18.0-193.79.1.el8_2.aarch64.rpm kernel-tools-libs-4.18.0-193.79.1.el8_2.aarch64.rpm perf-4.18.0-193.79.1.el8_2.aarch64.rpm perf-debuginfo-4.18.0-193.79.1.el8_2.aarch64.rpm python3-perf-4.18.0-193.79.1.el8_2.aarch64.rpm

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:0820-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0820
Issue date: 2022-03-10

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.2Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Critical. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security issue update critical bug fix Red Hat Enterprise Linux kernel

Relevant Releases Architectures

Red Hat CodeReady Linux Builder EUS (v. 8.2) - aarch64, ppc64le, x86_64

Red Hat Enterprise Linux BaseOS EUS (v. 8.2) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

2029923 - CVE-2021-4083 kernel: fget: check that the fd still exists after getting a ref to it

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

2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation

2060795 - CVE-2022-0847 kernel: improper initialization of the "flags" member of the new pipe_buffer

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