RHSA-2024:1278HighCVSS 8.8

Red Hat Security Advisory: kpatch-patch security update

Published
March 12, 2024
Last Modified
August 6, 2026

🔗 CVE IDs covered (9)

CVE-2023-4623 →CVE-2023-4921 →CVE-2023-5178 →CVE-2023-31436 →CVE-2023-35001 →CVE-2023-45871 →CVE-2023-3390 →CVE-2023-3611 →CVE-2024-0646 →

📋 Description

CVE-2023-3390 — kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests CVE-2023-3611 — kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead CVE-2023-4623 — kernel: net/sched: sch_hfsc UAF CVE-2023-4921 — kernel: use-after-free in sch_qfq network scheduler CVE-2023-5178 — kernel: use after free in nvmet_tcp_free_crypto in NVMe CVE-2023-31436 — kernel: out-of-bounds write in qfq_change_class function CVE-2023-35001 — kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() CVE-2023-45871 — kernel: IGB driver inadequate buffer size for frames larger than MTU CVE-2024-0646 — kernel: ktls overwrites readonly memory pages when using function splice with a ktls socket as destination

🎯 Affected products29

  • Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_113_1-0:1-4.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_113_1-0:1-4.el8_2.src as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_113_1-0:1-4.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_113_1-debuginfo-0:1-4.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_113_1-debuginfo-0:1-4.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_113_1-debugsource-0:1-4.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_113_1-debugsource-0:1-4.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_116_1-0:1-3.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_116_1-0:1-3.el8_2.src as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_116_1-0:1-3.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_116_1-debuginfo-0:1-3.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_116_1-debuginfo-0:1-3.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_116_1-debugsource-0:1-3.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_116_1-debugsource-0:1-3.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_119_1-0:1-2.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_119_1-0:1-2.el8_2.src as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_119_1-0:1-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_119_1-debuginfo-0:1-2.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_119_1-debuginfo-0:1-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_119_1-debugsource-0:1-2.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_119_1-debugsource-0:1-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_120_1-0:1-1.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_120_1-0:1-1.el8_2.src as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_120_1-0:1-1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_120_1-debuginfo-0:1-1.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_120_1-debuginfo-0:1-1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_120_1-debugsource-0:1-1.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_120_1-debugsource-0:1-1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)

✅ 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: Mitigation for this issue is to skip loading the affected module sch_qfq onto the system until we have a fix available. This can be done by a blacklist mechanism and will ensure the driver is not loaded at the boot time. ~~~ How do I blacklist a kernel module to prevent it from loading automatically? https://access.redhat.com/solutions/41278 ~~~ Workaround: To mitigate this issue, prevent the module sch_hfsc 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: To mitigate this issue, prevent the module, sch_qfq from being loaded. Please see https://access.redhat.com/solutions/41278 for information on how to blacklist a kernel module to prevent it from loading automatically. Workaround: To mitigate this issue, it is possible to prevent the affected code from being loaded by blacklisting the kernel netfilter module. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278 Workaround: To mitigate this issue, prevent module tls from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.

🔗 References (12)