RHSA-2023:7418HighCVSS 8.8

Red Hat Security Advisory: kpatch-patch security update

Published
November 21, 2023
Last Modified
July 30, 2026

🔗 CVE IDs covered (8)

CVE-2023-4128 · pendingCVE-2023-4206 →CVE-2023-4207 →CVE-2023-4208 →CVE-2023-5178 →CVE-2023-42753 →CVE-2023-3609 →CVE-2023-3812 →

📋 Description

CVE-2023-3609 — kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails CVE-2023-3812 — kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags CVE-2023-4128 — kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route CVE-2023-4206 — kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route CVE-2023-4207 — kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route CVE-2023-4208 — kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route CVE-2023-5178 — kernel: use after free in nvmet_tcp_free_crypto in NVMe CVE-2023-42753 — kernel: netfilter: potential slab-out-of-bound access due to integer underflow

🎯 Affected products29

  • Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_11_1-0:1-6.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_11_1-0:1-6.el9_2.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_11_1-0:1-6.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_11_1-debuginfo-0:1-6.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_11_1-debuginfo-0:1-6.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_11_1-debugsource-0:1-6.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_11_1-debugsource-0:1-6.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_18_1-0:1-5.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_18_1-0:1-5.el9_2.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_18_1-0:1-5.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_18_1-debuginfo-0:1-5.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_18_1-debuginfo-0:1-5.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_18_1-debugsource-0:1-5.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_18_1-debugsource-0:1-5.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_25_1-0:1-4.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_25_1-0:1-4.el9_2.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_25_1-0:1-4.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_25_1-debuginfo-0:1-4.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_25_1-debuginfo-0:1-4.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_25_1-debugsource-0:1-4.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_25_1-debugsource-0:1-4.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_30_1-0:1-1.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_30_1-0:1-1.el9_2.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_30_1-0:1-1.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_30_1-debuginfo-0:1-1.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_30_1-debuginfo-0:1-1.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_30_1-debugsource-0:1-1.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)
  • kpatch-patch-5_14_0-284_30_1-debugsource-0:1-1.el9_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2)

✅ 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 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 the tun module 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 the module cls_u32 from being loaded by blacklisting the module to prevent it from loading automatically. ~~~ https://access.redhat.com/solutions/41278 ~~~ Workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Workaround: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.

🔗 References (8)