RHSA-2023:4815HighCVSS 7.8

Red Hat Security Advisory: kernel security and bug fix update

Published
August 29, 2023
Last Modified
August 10, 2026

🔗 CVE IDs covered (3)

CVE-2023-3090 →CVE-2023-35788 →CVE-2023-2124 →

📋 Description

CVE-2023-2124 — kernel: OOB access in the Linux kernel's XFS subsystem CVE-2023-3090 — kernel: ipvlan: out-of-bounds write caused by unclear skb->cb CVE-2023-35788 — kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()

🎯 Affected products100

  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • Red Hat Enterprise Linux BaseOS TUS (v. 8.2)
  • bpftool-0:4.18.0-193.113.1.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • bpftool-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • bpftool-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • bpftool-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v. 8.2)
  • bpftool-debuginfo-0:4.18.0-193.113.1.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • bpftool-debuginfo-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • bpftool-debuginfo-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • bpftool-debuginfo-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v. 8.2)
  • kernel-0:4.18.0-193.113.1.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kernel-0:4.18.0-193.113.1.el8_2.src as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-0:4.18.0-193.113.1.el8_2.src as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kernel-0:4.18.0-193.113.1.el8_2.src as a component of Red Hat Enterprise Linux BaseOS TUS (v. 8.2)
  • kernel-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kernel-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v. 8.2)
  • kernel-abi-whitelists-0:4.18.0-193.113.1.el8_2.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-abi-whitelists-0:4.18.0-193.113.1.el8_2.noarch as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kernel-abi-whitelists-0:4.18.0-193.113.1.el8_2.noarch as a component of Red Hat Enterprise Linux BaseOS TUS (v. 8.2)
  • kernel-core-0:4.18.0-193.113.1.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kernel-core-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-core-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kernel-core-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v. 8.2)
  • kernel-debug-0:4.18.0-193.113.1.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kernel-debug-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v. 8.2)
  • kernel-debug-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • kernel-debug-0:4.18.0-193.113.1.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS TUS (v. 8.2)
  • kernel-debug-core-0:4.18.0-193.113.1.el8_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS E4S (v. 8.2)
  • +70 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: 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: 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 (6)