CVE-2023-2598

HIGH

Linux Kernel < 6.3.2 - Out-of-Bounds Write

Title source: rule
STIX 2.1

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.

Exploits (5)

nomisec WORKING POC 92 stars
by ysanatomic · poc
https://github.com/ysanatomic/io_uring_LPE-CVE-2023-2598
nomisec WRITEUP 3 stars
by SpongeBob-369 · poc
https://github.com/SpongeBob-369/CVE-2023-2598
nomisec WORKING POC 1 stars
by LLfam · poc
https://github.com/LLfam/CVE-2023-2598
nomisec WORKING POC
by guard-wait · poc
https://github.com/guard-wait/CVE-2023-2598_EXP
nomisec WORKING POC
by cainiao159357 · poc
https://github.com/cainiao159357/CVE-2023-2598

References (3)

Core 3

Scores

CVSS v3 7.8
EPSS 0.0070
EPSS Percentile 72.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-416 CWE-787
Status published
Products (6)
linux/linux_kernel 6.3 - 6.3.2
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
Published Jun 01, 2023
Tracked Since Feb 18, 2026