RHSA-2023:5604HighCVSS 7.8

Red Hat Security Advisory: kernel security and bug fix update

Published
October 10, 2023
Last Modified
August 4, 2026

🔗 CVE IDs covered (10)

CVE-2023-1206 →CVE-2023-1998 →CVE-2023-4128 · pendingCVE-2023-28327 →CVE-2023-31248 →CVE-2023-35788 →CVE-2023-53492 →CVE-2023-3161 →CVE-2023-35001 →CVE-2023-53245 →

📋 Description

CVE-2023-1206 — kernel: hash collisions in the IPv6 connection lookup table CVE-2023-1998 — kernel: Spectre v2 SMT mitigations problem CVE-2023-3161 — kernel: fbcon: shift-out-of-bounds in fbcon_set_font() CVE-2023-4128 — kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route CVE-2023-28327 — kernel: denial of service problem in net/unix/diag.c CVE-2023-31248 — kernel: nf_tables: use-after-free in nft_chain_lookup_byid() 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() CVE-2023-53245 — kernel: scsi: storvsc: Fix handling of virtual Fibre Channel timeouts CVE-2023-53492 — kernel: netfilter: nf_tables: do not ignore genmask when looking up chain by id

🎯 Affected products169

  • Red Hat CodeReady Linux Builder EUS (v.9.0)
  • Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-0:5.14.0-70.75.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-0:5.14.0-70.75.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-0:5.14.0-70.75.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-0:5.14.0-70.75.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.75.1.el9_0.aarch64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.75.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.75.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.75.1.el9_0.ppc64le as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.75.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.75.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.75.1.el9_0.s390x as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.75.1.el9_0.s390x as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.75.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.75.1.el9_0.x86_64 as a component of Red Hat CodeReady Linux Builder EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.75.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.0)
  • bpftool-debuginfo-0:5.14.0-70.75.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-0:5.14.0-70.75.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-0:5.14.0-70.75.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-0:5.14.0-70.75.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-0:5.14.0-70.75.1.el9_0.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-0:5.14.0-70.75.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-abi-stablelists-0:5.14.0-70.75.1.el9_0.noarch as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-core-0:5.14.0-70.75.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-core-0:5.14.0-70.75.1.el9_0.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-core-0:5.14.0-70.75.1.el9_0.s390x as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-core-0:5.14.0-70.75.1.el9_0.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • kernel-debug-0:5.14.0-70.75.1.el9_0.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.0)
  • +139 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: https://access.redhat.com/solutions/30453 Workaround: This flaw can be mitigated by disabling Simultaneous Multithreading (SMT). For instructions on how to disable SMT in RHEL, please see https://access.redhat.com/solutions/rhel-smt. 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: 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 (11)