NULL pointer dereference in Linux kernel - CVE-2023-52696
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90550
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-2023-52696
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 opal_powercap_init() function in arch/powerpc/platforms/powernv/opal-powercap.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/9da4a56dd3772570512ca58aa8832b052ae910dc
- https://git.kernel.org/stable/c/a67a04ad05acb56640798625e73fa54d6d41cce1
- https://git.kernel.org/stable/c/6b58d16037217d0c64a2a09b655f370403ec7219
- https://git.kernel.org/stable/c/f152a6bfd187f67afeffc9fd68cbe46f51439be0
- https://git.kernel.org/stable/c/69f95c5e9220f77ce7c540686b056c2b49e9a664
- https://git.kernel.org/stable/c/b02ecc35d01a76b4235e008d2dd292895b28ecab
- https://git.kernel.org/stable/c/e123015c0ba859cf48aa7f89c5016cc6e98e018d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.209
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.148
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.268
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.75
- 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