RHSA-2023:1841HighCVSS 7.8

Red Hat Security Advisory: kernel security and bug fix update

Published
April 18, 2023
Last Modified
August 6, 2026

🔗 CVE IDs covered (1)

CVE-2023-0461 →

📋 Description

CVE-2023-0461 — kernel: net/ulp: use-after-free in listening ULP sockets

🎯 Affected products132

  • Red Hat CodeReady Linux Builder EUS (v.8.6)
  • Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • Red Hat Virtualization 4 Hypervisor for RHEL 8
  • bpftool-0:4.18.0-372.52.1.el8_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • bpftool-0:4.18.0-372.52.1.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • bpftool-0:4.18.0-372.52.1.el8_6.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • bpftool-0:4.18.0-372.52.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.52.1.el8_6.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.52.1.el8_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.52.1.el8_6.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.52.1.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.52.1.el8_6.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.52.1.el8_6.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.52.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • bpftool-debuginfo-0:4.18.0-372.52.1.el8_6.x86_64 as a component of Red Hat Virtualization 4 Hypervisor for RHEL 8
  • kernel-0:4.18.0-372.52.1.el8_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-0:4.18.0-372.52.1.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-0:4.18.0-372.52.1.el8_6.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-0:4.18.0-372.52.1.el8_6.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-0:4.18.0-372.52.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-abi-stablelists-0:4.18.0-372.52.1.el8_6.noarch as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-core-0:4.18.0-372.52.1.el8_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-core-0:4.18.0-372.52.1.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-core-0:4.18.0-372.52.1.el8_6.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-core-0:4.18.0-372.52.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-debug-0:4.18.0-372.52.1.el8_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-debug-0:4.18.0-372.52.1.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-debug-0:4.18.0-372.52.1.el8_6.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-debug-0:4.18.0-372.52.1.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • kernel-debug-core-0:4.18.0-372.52.1.el8_6.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • +102 more not shown

✅ 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 The system must be rebooted for this update to take effect. 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 (4)