NULL pointer dereference in Linux kernel - CVE-2023-52450
Published: June 1, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90661
CSH Severity: 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-2023-52450
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 discover_upi_topology() function in arch/x86/events/intel/uncore_snbep.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/bf1bf09e6b599758851457f3999779622a48d015
- https://git.kernel.org/stable/c/3d6f4a78b104c65e4256c3776c9949f49a1b459e
- https://git.kernel.org/stable/c/1692cf434ba13ee212495b5af795b6a07e986ce4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8