#VU106189 NULL pointer dereference in Linux kernel - CVE-2023-52976
Published: March 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU106189
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-52976
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the efi_mem_reserve_persistent() function in drivers/firmware/efi/efi.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/87d4ff18738fd71e7e3c10827c80257da6283697
- https://git.kernel.org/stable/c/966d47e1f27c45507c5df82b2a2157e5a4fd3909
- https://git.kernel.org/stable/c/a2e6a9ff89f13666a1c3ff7195612ab949ea9afc
- https://git.kernel.org/stable/c/d8fc0b5fb3e816a4a8684bcd3ed02cbef0fce23c
- https://git.kernel.org/stable/c/d92a25627bcdf264183670da73c9a60c0bac327e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.232