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Red Hat: RHSA-2023-5238-01 Important: Kernel Security Update

red hat
Calendar Grey September 19, 2023
Dist Redhat Esm H88
Oracle rolls out crucial security patch for Cloud Infrastructure 7.5, tackling vulnerabilities and necessitating server restart.
An update for kernel is now available for Red Hat Enterprise Linux 8.1 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

The system must be rebooted for this update to take effect.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390)
* Kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route (CVE-2023-4128)
* kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (CVE-2023-35001)
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 kernel update security impact system reboot important advisory fixed issues

References

https://access.redhat.com/security/cve/CVE-2023-3390 https://access.redhat.com/security/cve/CVE-2023-4128 https://access.redhat.com/security/cve/CVE-2023-35001 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux BaseOS E4S (v. 8.1):
Source: kernel-4.18.0-147.90.1.el8_1.src.rpm
aarch64: bpftool-4.18.0-147.90.1.el8_1.aarch64.rpm bpftool-debuginfo-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-core-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-cross-headers-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-debug-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-debug-core-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-debug-debuginfo-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-debug-devel-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-debug-modules-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-debug-modules-extra-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-debuginfo-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-devel-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-headers-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-modules-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-modules-extra-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-tools-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-tools-debuginfo-4.18.0-147.90.1.el8_1.aarch64.rpm kernel-tools-libs-4.18.0-147.90.1.el8_1.aarch64.rpm perf-4.18.0-147.90.1.el8_1.aarch64.rpm perf-debuginfo-4.18.0-147.90.1.el8_1.aarch64.rpm python3-perf-4.18.0-147.90.1.el8_1.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:5238-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:5238
Issue date: 2023-09-19

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.1Update 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 Red Hat kernel update security impact system reboot important advisory fixed issues

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS E4S (v. 8.1) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

2213260 - CVE-2023-3390 kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests

2220892 - CVE-2023-35001 kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval()

2225511 - CVE-2023-4128 Kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route

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