Alerts This Week
Warning Icon 1 758
Alerts This Week
Warning Icon 1 758

Red Hat Enterprise Linux 8.1: RHSA-2021-3181-01 Important Kpatch Patch

red hat
Calendar Grey August 17, 2021
Dist Redhat Esm H88
Keep informed about the kpatch-patch security update for Red Hat Enterprise Linux. Key advisory information included!
An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.1 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

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: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)
* kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)
* 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 kernel update Red Hat Enterprise Linux important patch management kpatch patch

References

https://access.redhat.com/security/cve/CVE-2021-22543 https://access.redhat.com/security/cve/CVE-2021-22555 https://access.redhat.com/security/cve/CVE-2021-32399 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux BaseOS EUS (v. 8.1):
Source: kpatch-patch-4_18_0-147_27_1-1-12.el8_1.src.rpm kpatch-patch-4_18_0-147_32_1-1-10.el8_1.src.rpm kpatch-patch-4_18_0-147_34_1-1-10.el8_1.src.rpm kpatch-patch-4_18_0-147_38_1-1-9.el8_1.src.rpm kpatch-patch-4_18_0-147_43_1-1-7.el8_1.src.rpm kpatch-patch-4_18_0-147_44_1-1-6.el8_1.src.rpm kpatch-patch-4_18_0-147_48_1-1-3.el8_1.src.rpm kpatch-patch-4_18_0-147_51_1-1-2.el8_1.src.rpm kpatch-patch-4_18_0-147_51_2-1-1.el8_1.src.rpm
ppc64le: kpatch-patch-4_18_0-147_27_1-1-12.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_27_1-debuginfo-1-12.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_27_1-debugsource-1-12.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_32_1-1-10.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_32_1-debuginfo-1-10.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_32_1-debugsource-1-10.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_34_1-1-10.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_34_1-debuginfo-1-10.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_34_1-debugsource-1-10.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_38_1-1-9.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_38_1-debuginfo-1-9.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_38_1-debugsource-1-9.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_43_1-1-7.el8_1.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:3181-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3181
Issue date: 2021-08-17

Topic

An update for kpatch-patch is now available for Red Hat Enterprise Linux8.1 Extended Update Support.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 kernel update Red Hat Enterprise Linux important patch management kpatch patch

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS EUS (v. 8.1) - ppc64le, x86_64

Bugs Fixed

1965461 - CVE-2021-22543 kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks

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

1980101 - CVE-2021-22555 kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here