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Red Hat Enterprise Linux 8.1 RHSA-2023:4515-01 Important Kernel Update

red hat
Calendar Grey August 8, 2023
Dist Redhat Esm H88
Kernel security updates are crucial for Red Hat Enterprise Linux 8.1. Learn about the critical fixes available now.
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: 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)
* kernel: OOB access in the Linux kernel's XFS subsystem (CVE-2023-2124)
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 important kernel memory access CVE reference use-after-free

References

https://access.redhat.com/security/cve/CVE-2023-1829 https://access.redhat.com/security/cve/CVE-2023-2124 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: kernel-4.18.0-147.87.1.el8_1.src.rpm
aarch64: bpftool-4.18.0-147.87.1.el8_1.aarch64.rpm bpftool-debuginfo-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-core-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-cross-headers-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-debug-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-debug-core-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-debug-debuginfo-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-debug-devel-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-debug-modules-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-debug-modules-extra-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-debuginfo-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-devel-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-headers-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-modules-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-modules-extra-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-tools-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-tools-debuginfo-4.18.0-147.87.1.el8_1.aarch64.rpm kernel-tools-libs-4.18.0-147.87.1.el8_1.aarch64.rpm perf-4.18.0-147.87.1.el8_1.aarch64.rpm perf-debuginfo-4.18.0-147.87.1.el8_1.aarch64.rpm python3-perf-4.18.0-147.87.1.el8_1.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:4515-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4515
Issue date: 2023-08-08

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 important kernel memory access CVE reference use-after-free

Relevant Releases Architectures

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

Bugs Fixed

2187439 - CVE-2023-2124 kernel: OOB access in the Linux kernel's XFS subsystem

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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