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Red Hat Enterprise Linux 8 RHSA-2022-1535-01 Critical kpatch-patch Update

red hat
Calendar Grey April 26, 2022
Dist Redhat Esm H88
Crucial security enhancement for Red Hat Enterprise Linux 8 tackling serious vulnerabilities in kpatch-patch. Explore for remedies.
An update for kpatch-patch 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

Summary

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.
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.

Topics%20covered

Topics Covered

security advisory critical Red Hat Enterprise Linux important heap overflow use-after-free kpatch-patch

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: kpatch-patch-4_18_0-348-1-4.el8.src.rpm kpatch-patch-4_18_0-348_12_2-1-2.el8_5.src.rpm kpatch-patch-4_18_0-348_20_1-1-1.el8_5.src.rpm kpatch-patch-4_18_0-348_2_1-1-3.el8_5.src.rpm kpatch-patch-4_18_0-348_7_1-1-3.el8_5.src.rpm
ppc64le: kpatch-patch-4_18_0-348-1-4.el8.ppc64le.rpm kpatch-patch-4_18_0-348-debuginfo-1-4.el8.ppc64le.rpm kpatch-patch-4_18_0-348-debugsource-1-4.el8.ppc64le.rpm kpatch-patch-4_18_0-348_12_2-1-2.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_12_2-debuginfo-1-2.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_12_2-debugsource-1-2.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_20_1-1-1.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_20_1-debuginfo-1-1.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_20_1-debugsource-1-1.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_2_1-1-3.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_2_1-debuginfo-1-3.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_2_1-debugsource-1-3.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_7_1-1-3.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_7_1-debuginfo-1-3.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_7_1-debugsource-1-3.el8_5.ppc64le.rpm
x86_64: kpatch-patch-4_18_0-348-1-4.el8.x86_64.rpm kpatch-patch-4_18_0-348-debuginfo-1-4.el8.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:1535-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:1535
Issue date: 2022-04-26

Topic

An update for kpatch-patch 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 critical Red Hat Enterprise Linux important heap overflow use-after-free kpatch-patch

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 8) - ppc64le, 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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