RHSA-2024:1961HighCVSS 7.8

Red Hat Security Advisory: kpatch-patch security update

Published
April 23, 2024
Last Modified
November 7, 2026

🔗 CVE IDs covered (1)

CVE-2023-3812 →

📋 Description

CVE-2023-3812 — kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags

🎯 Affected products22

  • Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kpatch-patch-4_18_0-193_116_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_116_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_116_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_116_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_116_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_116_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_116_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_119_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_119_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_119_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_119_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_119_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_119_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_119_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_120_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_120_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_120_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_120_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_120_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_120_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_120_1-debugsource-0:1-2.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: 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.

🔗 References (4)