CVE intelligence and bounded remediation

CVE-2023-2598 — Linux Linux Kernel security vulnerability

High CVSS 7.8

A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.

Severity
High
CVSS
7.8 (3.1)
Published
2023-06-01
CISA KEV
Not currently listed
Ecosystem
linux/kernel
Weaknesses
CWE-416, CWE-787

Affected products

  • linux / linux_kernel
  • netapp / hci_baseboard_management_controller / h300s
  • netapp / hci_baseboard_management_controller / h410c
  • netapp / hci_baseboard_management_controller / h410s
  • netapp / hci_baseboard_management_controller / h500s
  • netapp / hci_baseboard_management_controller / h700s

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Identify affected native-code versions, build flags, architectures, parsers, codecs, drivers, and input paths in all shipped artifacts.
  • Determine whether untrusted data reaches the affected routine and the process privilege, sandbox, and network exposure.
  • Confirm statically linked, vendored, firmware, and platform-provided copies, not only package-manager records.

Remediate safely

  • Apply the maintained upstream correction or replace the affected component, then rebuild every dependent artifact from clean inputs.
  • Adopt bounds-checked interfaces, validated sizes and integer conversions, clear ownership, and memory-safe components where practical.
  • Enable supported compiler and runtime hardening and add sanitized tests and fuzz regression seeds derived from non-weaponized fixtures.

Authoritative sources

Complete CVE record and remediation plan

The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.