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Red Hat Enterprise Linux 8 RHSA-2021:2716-01 Critical Kpatch Patch Update

red hat
Calendar Grey July 20, 2021
Dist Redhat Esm H88
CentOS 8 releases deliver crucial updates aimed at fortifying security measures, safeguarding systems from emerging vulnerabilities.
An update 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: size_t-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909)
* kernel: race condition for removal of the HCI controller (CVE-2021-32399)
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 Red Hat kernel fix security impact important update kpatch HCI controller

References

https://access.redhat.com/security/cve/CVE-2021-32399 https://access.redhat.com/security/cve/CVE-2021-33909 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/security/vulnerabilities/RHSB-2021-006

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: kpatch-patch-4_18_0-305-1-3.el8.src.rpm kpatch-patch-4_18_0-305_3_1-1-2.el8_4.src.rpm kpatch-patch-4_18_0-305_7_1-1-1.el8_4.src.rpm
ppc64le: kpatch-patch-4_18_0-305-1-3.el8.ppc64le.rpm kpatch-patch-4_18_0-305-debuginfo-1-3.el8.ppc64le.rpm kpatch-patch-4_18_0-305-debugsource-1-3.el8.ppc64le.rpm kpatch-patch-4_18_0-305_3_1-1-2.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_3_1-debuginfo-1-2.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_3_1-debugsource-1-2.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_7_1-1-1.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_7_1-debuginfo-1-1.el8_4.ppc64le.rpm kpatch-patch-4_18_0-305_7_1-debugsource-1-1.el8_4.ppc64le.rpm
x86_64: kpatch-patch-4_18_0-305-1-3.el8.x86_64.rpm kpatch-patch-4_18_0-305-debuginfo-1-3.el8.x86_64.rpm kpatch-patch-4_18_0-305-debugsource-1-3.el8.x86_64.rpm kpatch-patch-4_18_0-305_3_1-1-2.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_3_1-debuginfo-1-2.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_3_1-debugsource-1-2.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_7_1-1-1.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_7_1-debuginfo-1-1.el8_4.x86_64.rpm kpatch-patch-4_18_0-305_7_1-debugsource-1-1.el8_4.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2716-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2716
Issue date: 2021-07-20

Topic

An update 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 Red Hat kernel fix security impact important update kpatch HCI controller

Relevant Releases Architectures

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

Bugs Fixed

1970273 - CVE-2021-33909 kernel: size_t-to-int conversion vulnerability in the filesystem layer

1970807 - CVE-2021-32399 kernel: race condition for removal of the HCI controller

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