What is RHSA-2023:5794?

RHSA-2023:5794 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: kernel-rt security update

Which CVE IDs does RHSA-2023:5794 cover?

RHSA-2023:5794 covers the following CVE IDs: CVE-2023-1637, CVE-2023-3609, CVE-2023-3776, CVE-2023-4128. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2023:5794?

RHSA-2023:5794 has a CVSS v3 base score of 7.8, published by Red Hat Product Security.

Which products are affected by RHSA-2023:5794?

RHSA-2023:5794 affects 32 products, including: Red Hat Enterprise Linux NFV TUS (v.8.4); Red Hat Enterprise Linux RT TUS (v.8.4); kernel-rt-0:4.18.0-305.108.1.rt7.183.el8_4.src as a component of Red Hat Enterprise Linux NFV TUS (v.8.4); kernel-rt-0:4.18.0-305.108.1.rt7.183.el8_4.src as a component of Red Hat Enterprise Linux RT TUS (v.8.4); kernel-rt-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4); and others — see the full list on the advisory page.

RHSA-2023:5794HighCVSS 7.8

Red Hat Security Advisory: kernel-rt security update

Vendor

Red Hat Product Security

Published

October 17, 2023

Last Modified

July 30, 2026

🔗 CVE IDs covered (4)

CVE-2023-1637 →CVE-2023-3609 →CVE-2023-3776 →CVE-2023-4128 · pending

📋 Description

CVE-2023-1637 — kernel: save/restore speculative MSRs during S3 suspend/resume CVE-2023-3609 — kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails CVE-2023-3776 — kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function CVE-2023-4128 — kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route

🎯 Affected products32

Red Hat Enterprise Linux NFV TUS (v.8.4)
Red Hat Enterprise Linux RT TUS (v.8.4)
kernel-rt-0:4.18.0-305.108.1.rt7.183.el8_4.src as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-0:4.18.0-305.108.1.rt7.183.el8_4.src as a component of Red Hat Enterprise Linux RT TUS (v.8.4)
kernel-rt-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux RT TUS (v.8.4)
kernel-rt-core-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-core-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux RT TUS (v.8.4)
kernel-rt-debug-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-debug-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux RT TUS (v.8.4)
kernel-rt-debug-core-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-debug-core-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux RT TUS (v.8.4)
kernel-rt-debug-debuginfo-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-debug-debuginfo-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux RT TUS (v.8.4)
kernel-rt-debug-devel-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-debug-devel-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux RT TUS (v.8.4)
kernel-rt-debug-kvm-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-debug-modules-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-debug-modules-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux RT TUS (v.8.4)
kernel-rt-debug-modules-extra-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-debug-modules-extra-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux RT TUS (v.8.4)
kernel-rt-debuginfo-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-debuginfo-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux RT TUS (v.8.4)
kernel-rt-debuginfo-common-x86_64-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-debuginfo-common-x86_64-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux RT TUS (v.8.4)
kernel-rt-devel-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-devel-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux RT TUS (v.8.4)
kernel-rt-kvm-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-modules-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux NFV TUS (v.8.4)
kernel-rt-modules-0:4.18.0-305.108.1.rt7.183.el8_4.x86_64 as a component of Red Hat Enterprise Linux RT TUS (v.8.4)
+2 more not shown

✅ Remediation

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. Workaround: To mitigate this issue, prevent module cls_u32 from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically. Workaround: To mitigate this issue, prevent module cls_fw from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.

🔗 CVE IDs covered (4)

📋 Description

🎯 Affected products32

✅ Remediation

🔗 References (7)