CVE-2023-2598
At a glance Severity HIGH 7.8 EPSS EPSS 1.37 % · percentile 72 (2026-10-27) State PUBLISHED Published 2023-06-01 Updated 2025-04-23 Assigner redhat NVD status Modified Description 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.
Scores Version Score Vector Scored by CVSS 3.1 HIGH 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CISA-ADP CVSS 3.1 HIGH 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H NVD · nvd@nist.gov (Primary) CVSS 3.1 HIGH 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
Weaknesses (CWE)
European references
Affected configurations (NVD CPE) cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* ≥ 6.3 < 6.3.2cpe:2.3:a:netapp:hci_baseboard_management_controller:h300s:*:*:*:*:*:*:*cpe:2.3:a:netapp:hci_baseboard_management_controller:h410c:*:*:*:*:*:*:*cpe:2.3:a:netapp:hci_baseboard_management_controller:h410s:*:*:*:*:*:*:*cpe:2.3:a:netapp:hci_baseboard_management_controller:h500s:*:*:*:*:*:*:*cpe:2.3:a:netapp:hci_baseboard_management_controller:h700s:*:*:*:*:*:*:*Affected products Product Versions Kernel affected Kernel prior to 6.4-rc1
References
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