Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 491
Alerts This Week
Warning Icon 1 491

RedHat: RHSA-2023-1104 Critical Kpatch Update Buffer Overflow Issue

red hat
Calendar Grey March 7, 2023
Scroller Redhat
Crucial kpatch-patch security fix released for Red Hat Enterprise Linux 8.2. Find out more and learn how to address the issue here.
An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions

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: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)
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 patch red hat enterprise security fixes stack overflow important update kpatch

References

https://access.redhat.com/security/cve/CVE-2022-4378 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux BaseOS E4S (v. 8.2):
Source: kpatch-patch-4_18_0-193_90_1-1-4.el8_2.src.rpm kpatch-patch-4_18_0-193_91_1-1-4.el8_2.src.rpm kpatch-patch-4_18_0-193_93_1-1-3.el8_2.src.rpm kpatch-patch-4_18_0-193_95_1-1-2.el8_2.src.rpm kpatch-patch-4_18_0-193_98_1-1-1.el8_2.src.rpm
ppc64le: kpatch-patch-4_18_0-193_90_1-1-4.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_90_1-debuginfo-1-4.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_90_1-debugsource-1-4.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_91_1-1-4.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_91_1-debuginfo-1-4.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_91_1-debugsource-1-4.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_93_1-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_93_1-debuginfo-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_93_1-debugsource-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_95_1-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_95_1-debuginfo-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_95_1-debugsource-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_98_1-1-1.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_98_1-debuginfo-1-1.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_98_1-debugsource-1-1.el8_2.ppc64le.rpm
x86_64: kpatch-patch-4_18_0-193_90_1-1-4.el8_2.x86_64.rpm

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:1103-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:1103
Issue date: 2023-03-07

Topic

An update for kpatch-patch is now available for Red Hat Enterprise Linux8.2 Update Services for SAP Solutions.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 patch red hat enterprise security fixes stack overflow important update kpatch

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS E4S (v. 8.2) - ppc64le, x86_64

Bugs Fixed

2152548 - CVE-2022-4378 kernel: stack overflow in do_proc_dointvec and proc_skip_spaces

Get the latest News and Insights

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