RHSA-2024:0340HighCVSS 8.8

Red Hat Security Advisory: kpatch-patch security update

Published
January 23, 2024
Last Modified
November 7, 2026

🔗 CVE IDs covered (5)

CVE-2023-5178 →CVE-2023-42753 →CVE-2023-3812 →CVE-2023-4622 →CVE-2023-4623 →

📋 Description

CVE-2023-3812 — kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags CVE-2023-4622 — kernel: use after free in unix_stream_sendpage CVE-2023-4623 — kernel: net/sched: sch_hfsc UAF 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 products15

  • Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_13_1-0:1-1.el9_3.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_13_1-0:1-1.el9_3.src as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_13_1-0:1-1.el9_3.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_13_1-debuginfo-0:1-1.el9_3.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_13_1-debuginfo-0:1-1.el9_3.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_13_1-debugsource-0:1-1.el9_3.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_13_1-debugsource-0:1-1.el9_3.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_8_1-0:1-2.el9_3.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_8_1-0:1-2.el9_3.src as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_8_1-0:1-2.el9_3.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_8_1-debuginfo-0:1-2.el9_3.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_8_1-debuginfo-0:1-2.el9_3.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_8_1-debugsource-0:1-2.el9_3.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9)
  • kpatch-patch-5_14_0-362_8_1-debugsource-0:1-2.el9_3.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 9)

✅ Remediation

Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 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: Mitigation for this issue is either not available or 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_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: 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)