#VU90934 Improper error handling in Linux kernel - CVE-2023-52831
Published: June 3, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90934
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-2023-52831
CWE-ID: CWE-388
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 improper error handling within the cpu_down_maps_locked() function in kernel/cpu.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/3410b702354702b500bde10e3cc1f9db8731d908
- https://git.kernel.org/stable/c/335a47ed71e332c82339d1aec0c7f6caccfcda13
- https://git.kernel.org/stable/c/3073f6df783d9d75f7f69f73e16c7ef85d6cfb63
- https://git.kernel.org/stable/c/38685e2a0476127db766f81b1c06019ddc4c9ffa
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.64
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7