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Red Hat Enterprise Linux 8 RHSA-2022-1550-01 Critical Kernel Patch

red hat
Calendar Grey April 27, 2022
Dist Redhat Esm H88
CentOS Linux 8 kernel upgrade deemed Critical addresses multiple vulnerabilities and defects.
An update for kernel is now available 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/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.
Security Fix(es):
* kernel: use-after-free in RDMA listen() (CVE-2021-4028)
* kernel: heap out of bounds write in nf_dup_netdev.c (CVE-2022-25636)
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):
* Backport DFS fixes from upstream (BZ#2056329)
* [RHEL8.5] lpfc driver often fails to detect storage directly connected to Broadcom FC HBA (BZ#2058193)
* nf_reinject calls nf_queue_entry_free on an already freed entry->state (BZ#2061446)
* gfs2 blocking in gdlm_lock (BZ#2069750)

Topics%20covered

Topics Covered

security advisory security issue Red Hat update bug fix important kernel

References

https://access.redhat.com/security/cve/CVE-2021-4028 https://access.redhat.com/security/cve/CVE-2022-25636 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: kernel-4.18.0-348.23.1.el8_5.src.rpm
aarch64: bpftool-4.18.0-348.23.1.el8_5.aarch64.rpm bpftool-debuginfo-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-core-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-cross-headers-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-debug-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-debug-core-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-debug-debuginfo-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-debug-devel-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-debug-modules-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-debug-modules-extra-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-debuginfo-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-devel-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-headers-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-modules-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-modules-extra-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-tools-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-tools-debuginfo-4.18.0-348.23.1.el8_5.aarch64.rpm kernel-tools-libs-4.18.0-348.23.1.el8_5.aarch64.rpm perf-4.18.0-348.23.1.el8_5.aarch64.rpm perf-debuginfo-4.18.0-348.23.1.el8_5.aarch64.rpm python3-perf-4.18.0-348.23.1.el8_5.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:1550-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:1550
Issue date: 2022-04-26

Topic

An update for kernel is now available for 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 security issue Red Hat update bug fix important kernel

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, x86_64

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

2027201 - CVE-2021-4028 kernel: use-after-free in RDMA listen()

2056830 - CVE-2022-25636 kernel: heap out of bounds write in nf_dup_netdev.c

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