RHSA-2023:5221HighCVSS 7.8

Red Hat Security Advisory: kpatch-patch security update

Published
September 19, 2023
Last Modified
October 15, 2026

🔗 CVE IDs covered (6)

CVE-2023-3090 →CVE-2023-3390 →CVE-2023-3776 →CVE-2023-4004 →CVE-2023-35001 →CVE-2023-35788 →

📋 Description

CVE-2023-3090 — kernel: ipvlan: out-of-bounds write caused by unclear skb->cb CVE-2023-3390 — kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests CVE-2023-3776 — kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function CVE-2023-4004 — kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() CVE-2023-35001 — kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() CVE-2023-35788 — kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()

🎯 Affected products29

  • Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_10_1-0:1-3.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_10_1-0:1-3.el8_8.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_10_1-0:1-3.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_10_1-debuginfo-0:1-3.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_10_1-debuginfo-0:1-3.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_10_1-debugsource-0:1-3.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_10_1-debugsource-0:1-3.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_13_1-0:1-2.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_13_1-0:1-2.el8_8.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_13_1-0:1-2.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_13_1-debuginfo-0:1-2.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_13_1-debuginfo-0:1-2.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_13_1-debugsource-0:1-2.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_13_1-debugsource-0:1-2.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_15_1-0:1-2.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_15_1-0:1-2.el8_8.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_15_1-0:1-2.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_15_1-debuginfo-0:1-2.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_15_1-debuginfo-0:1-2.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_15_1-debugsource-0:1-2.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_15_1-debugsource-0:1-2.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_21_1-0:1-1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_21_1-0:1-1.el8_8.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_21_1-0:1-1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_21_1-debuginfo-0:1-1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_21_1-debuginfo-0:1-1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_21_1-debugsource-0:1-1.el8_8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)
  • kpatch-patch-4_18_0-477_21_1-debugsource-0:1-1.el8_8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)

✅ 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: This flaw can be mitigated by preventing the affected `ipvlan` kernel module from being loaded. For instructions on how to blacklist a kernel module, please see https://access.redhat.com/solutions/41278. 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. Workaround: This flaw can be mitigated by preventing the affected netfilter kernel module from being loaded. For instructions on how to blacklist a kernel module, please see https://access.redhat.com/solutions/41278. 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: This flaw can be mitigated by preventing the affected `cls_flower` kernel module from being loaded. For instructions on how to blacklist a kernel module, please see https://access.redhat.com/solutions/41278.

🔗 References (9)