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Red Hat: RHSA-2023-4146 Important: Kpatch-Patch DoS Security Flaw

red hat
Calendar Grey July 18, 2023
Dist Redhat Esm H88
Learn about the important kpatch-patch update for Red Hat Enterprise Linux addressing critical security issues.
An update for kpatch-patch-4_18_0-193_100_1, kpatch-patch-4_18_0-193_105_1, kpatch-patch-4_18_0-193_95_1, and kpatch-patch-4_18_0-193_98_1 is now available for Red Hat Enterprise L...

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: tcindex: use-after-free vulnerability in traffic control index filter allows privilege escalation (CVE-2023-1281)
* kernel: remote DoS in TIPC kernel module (CVE-2023-1390)
* 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 DoS Red Hat Enterprise Linux important kernel fix kpatch-patch penetration risk

References

https://access.redhat.com/security/cve/CVE-2023-0461 https://access.redhat.com/security/cve/CVE-2023-1281 https://access.redhat.com/security/cve/CVE-2023-1390 https://access.redhat.com/security/cve/CVE-2023-32233 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_100_1-1-2.el8_2.src.rpm kpatch-patch-4_18_0-193_105_1-1-1.el8_2.src.rpm kpatch-patch-4_18_0-193_95_1-1-4.el8_2.src.rpm kpatch-patch-4_18_0-193_98_1-1-3.el8_2.src.rpm
ppc64le: kpatch-patch-4_18_0-193_100_1-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_100_1-debuginfo-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_100_1-debugsource-1-2.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_105_1-1-1.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_105_1-debuginfo-1-1.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_105_1-debugsource-1-1.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_95_1-1-4.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_95_1-debuginfo-1-4.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_95_1-debugsource-1-4.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_98_1-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_98_1-debuginfo-1-3.el8_2.ppc64le.rpm kpatch-patch-4_18_0-193_98_1-debugsource-1-3.el8_2.ppc64le.rpm
x86_64: kpatch-patch-4_18_0-193_100_1-1-2.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_100_1-debuginfo-1-2.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_100_1-debugsource-1-2.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_105_1-1-1.el8_2.x86_64.rpm kpatch-patch-4_18_0-193_105_1-debuginfo-1-1.el8_2.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:4146-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4146
Issue date: 2023-07-18

Topic

An update for kpatch-patch-4_18_0-193_100_1, kpatch-patch-4_18_0-193_105_1,kpatch-patch-4_18_0-193_95_1, and kpatch-patch-4_18_0-193_98_1 is nowavailable for Red Hat Enterprise Linux 8.2 Update Services for SAPSolutions.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 DoS Red Hat Enterprise Linux important kernel fix kpatch-patch penetration risk

Relevant Releases Architectures

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

Bugs Fixed

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

2178212 - CVE-2023-1390 kernel: remote DoS in TIPC kernel module

2181847 - CVE-2023-1281 kernel: tcindex: use-after-free vulnerability in traffic control index filter allows 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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