RHSA-2023:5091: Important: kernel-rt security and bug fix update

Published Sep 12, 2023
·
Updated

Important: kernel-rt security and bug fix update

Other sources

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.Security Fix(es): kernel: UAF in nftables when nftsetlookupglobal triggered after handling named and anonymous sets in batch requests (CVE-2023-3390) kernel: netfilter: nftables: fix chain binding transaction logic in the abort path of NFTMSGNEWRULE (CVE-2023-3610) kernel: net/sched: clsfw component can be exploited as result of failure in tcfchangeindev function (CVE-2023-3776) kernel: netfilter: use-after-free due to improper element removal in nftpipaporemove() (CVE-2023-4004) kernel: netfilter: nftablesnewrule when adding a rule with NFTARULECHAINID leads to use-after-free (CVE-2023-4147) kernel: nftables: use-after-free in nftchainlookupbyid() (CVE-2023-31248) kernel: nftables: stack-out-of-bounds-read in nftbyteordereval() (CVE-2023-35001) kernel: save/restore speculative MSRs during S3 suspend/resume (CVE-2023-1637) hw: amd: Cross-Process Information Leak (CVE-2023-20593) kernel: bypass of shadow stack protection due to a logic error (CVE-2023-21102) 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.Bug Fix(es): kernel-rt: update RT source tree to the latest RHEL-9.2.z3 Batch (BZ#2228482)

Red Hat

Affected Software

19 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for Real Time for NFV
Red Hat Red Hat Enterprise Linux for Real Time
redhat/kernel-rt<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-core<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-debug<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-debug-core<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-debug-debuginfo<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-debug-devel<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-debug-kvm<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-debug-modules<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-debug-modules-core<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-debug-modules-extra<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-debuginfo<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-devel<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-kvm<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-modules<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-modules-core<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2
redhat/kernel-rt-modules-extra<5.14.0-284.30.1.rt14.315.el9_2
5.14.0-284.30.1.rt14.315.el9_2

Remediation

Event History

Sep 12, 2023
Advisory Published
07:45 AM
Jan 22, 2026
Advisory Published
via Red Hat·07:31 PM
Data Sourced
via Red Hat·07:31 PM
RemedyDescriptionAffected Software

Frequently Asked Questions

1

What is the severity of RHSA-2023:5091?

The severity of RHSA-2023:5091 is high.

2

How do I fix RHSA-2023:5091?

To fix RHSA-2023:5091, you need to update your kernel-rt package to version 5.14.0-284.30.1.rt14.315.el9_2 or later.

3

What software is affected by RHSA-2023:5091?

RHSA-2023:5091 affects Red Hat Enterprise Linux for Real Time for NFV, Red Hat Enterprise Linux for Real Time, and various kernel-rt packages.

4

Where can I find more information about RHSA-2023:5091?

You can find more information about RHSA-2023:5091 in the Red Hat Security Advisory: [https://access.redhat.com/errata/RHSA-2023:5091](https://access.redhat.com/errata/RHSA-2023:5091).

5

Is there a CVE associated with RHSA-2023:5091?

No, there is no CVE associated with RHSA-2023:5091.

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