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Red Hat Enterprise Linux 8.1 RHSA-2023:4516-01 Important Kernel Patch

red hat
Calendar Grey August 8, 2023
Dist Redhat Esm H88
New kpatch-patch released for Red Hat Enterprise Linux 8.1, fixing critical kernel bugs and security flaws.
An update for kpatch-patch-4_18_0-147_78_1, kpatch-patch-4_18_0-147_80_1, kpatch-patch-4_18_0-147_81_1, kpatch-patch-4_18_0-147_83_1, and kpatch-patch-4_18_0-147_85_1 is now availa...

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: Use-after-free vulnerability in the Linux Kernel traffic control index filter (CVE-2023-1829)
* kernel: ipvlan: out-of-bounds write caused by unclear skb->cb (CVE-2023-3090)
* kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788)
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 security issue kernel patch Red Hat Enterprise Linux important kernel fix kpatch-patch

References

https://access.redhat.com/security/cve/CVE-2023-1829 https://access.redhat.com/security/cve/CVE-2023-3090 https://access.redhat.com/security/cve/CVE-2023-35788 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux BaseOS E4S (v. 8.1):
Source: kpatch-patch-4_18_0-147_78_1-1-6.el8_1.src.rpm kpatch-patch-4_18_0-147_80_1-1-5.el8_1.src.rpm kpatch-patch-4_18_0-147_81_1-1-4.el8_1.src.rpm kpatch-patch-4_18_0-147_83_1-1-3.el8_1.src.rpm kpatch-patch-4_18_0-147_85_1-1-1.el8_1.src.rpm
ppc64le: kpatch-patch-4_18_0-147_78_1-1-6.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_78_1-debuginfo-1-6.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_78_1-debugsource-1-6.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_80_1-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_80_1-debuginfo-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_80_1-debugsource-1-5.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_81_1-1-4.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_81_1-debuginfo-1-4.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_81_1-debugsource-1-4.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_83_1-1-3.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_83_1-debuginfo-1-3.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_83_1-debugsource-1-3.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_85_1-1-1.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_85_1-debuginfo-1-1.el8_1.ppc64le.rpm kpatch-patch-4_18_0-147_85_1-debugsource-1-1.el8_1.ppc64le.rpm
x86_64: kpatch-patch-4_18_0-147_78_1-1-6.el8_1.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:4516-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4516
Issue date: 2023-08-08

Topic

An update for kpatch-patch-4_18_0-147_78_1, kpatch-patch-4_18_0-147_80_1,kpatch-patch-4_18_0-147_81_1, kpatch-patch-4_18_0-147_83_1, andkpatch-patch-4_18_0-147_85_1 is now available for Red Hat Enterprise Linux8.1. 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 security issue kernel patch Red Hat Enterprise Linux important kernel fix kpatch-patch

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS E4S (v. 8.1) - ppc64le, x86_64

Bugs Fixed

2188470 - CVE-2023-1829 kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter

2215768 - CVE-2023-35788 kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()

2218672 - CVE-2023-3090 kernel: ipvlan: out-of-bounds write caused by unclear skb->cb

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