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Red Hat 9.0 RHSA-2023:3490-01 Important: Kpatch-Patch Kernel Fix

red hat
Calendar Grey June 6, 2023
Dist Redhat Esm H88
A crucial kpatch-patch upgrade classified as high priority by Red Hat, targeting severe vulnerabilities found within kernel components.
An update for kpatch-patch is now available for Red Hat Enterprise Linux 9.0 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: net/ulp: use-after-free in listening ULP sockets (CVE-2023-0461)
* kernel: udmabuf: improper validation of array index leading to local privilege escalation (CVE-2023-2008)
* kernel: netfilter: use-after-free in nf_tables when processing batch requests can lead to privilege escalation (CVE-2023-32233)
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 local privilege escalation kernel important update use-after-free kpatch-patch

References

https://access.redhat.com/security/cve/CVE-2023-0461 https://access.redhat.com/security/cve/CVE-2023-2008 https://access.redhat.com/security/cve/CVE-2023-32233 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux BaseOS EUS (v.9.0):
Source: kpatch-patch-5_14_0-70_30_1-1-6.el9_0.src.rpm kpatch-patch-5_14_0-70_36_1-1-5.el9_0.src.rpm kpatch-patch-5_14_0-70_43_1-1-4.el9_0.src.rpm kpatch-patch-5_14_0-70_49_1-1-3.el9_0.src.rpm kpatch-patch-5_14_0-70_50_2-1-2.el9_0.src.rpm kpatch-patch-5_14_0-70_53_1-1-1.el9_0.src.rpm
ppc64le: kpatch-patch-5_14_0-70_30_1-1-6.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_30_1-debuginfo-1-6.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_30_1-debugsource-1-6.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_36_1-1-5.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_36_1-debuginfo-1-5.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_36_1-debugsource-1-5.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_43_1-1-4.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_43_1-debuginfo-1-4.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_43_1-debugsource-1-4.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_49_1-1-3.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_49_1-debuginfo-1-3.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_49_1-debugsource-1-3.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_50_2-1-2.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_50_2-debuginfo-1-2.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_50_2-debugsource-1-2.el9_0.ppc64le.rpm kpatch-patch-5_14_0-70_53_1-1-1.el9_0.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:3490-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:3490
Issue date: 2023-06-06

Topic

An update for kpatch-patch is now available for Red Hat Enterprise Linux9.0 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 Red Hat local privilege escalation kernel important update use-after-free kpatch-patch

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS EUS (v.9.0) - ppc64le, x86_64

Bugs Fixed

2176192 - CVE-2023-0461 kernel: net/ulp: use-after-free in listening ULP sockets

2186862 - CVE-2023-2008 kernel: udmabuf: improper validation of array index leading to local privilege escalation

2196105 - CVE-2023-32233 kernel: netfilter: use-after-free in nf_tables when processing batch requests can lead to privilege escalation

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