#VU115456 NULL pointer dereference in Linux kernel - CVE-2023-53147
Published: September 16, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115456
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-2023-53147
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 xfrm_update_ae_params() function in net/xfrm/xfrm_user.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/00374d9b6d9f932802b55181be9831aa948e5b7c
- https://git.kernel.org/stable/c/075448a2eb753f813fe873cfa52853e9fef8eedb
- https://git.kernel.org/stable/c/44f69c96f8a147413c23c68cda4d6fb5e23137cd
- https://git.kernel.org/stable/c/53df4be4f5221e90dc7aa9ce745a9a21bb7024f4
- https://git.kernel.org/stable/c/8046beb890ebc83c5820188c650073e1c6066e67
- https://git.kernel.org/stable/c/87b655f4936b6fc01f3658aa88a22c923b379ebd
- https://git.kernel.org/stable/c/bd30aa9c7febb6e709670cd5154194189ca3b7b5
- https://git.kernel.org/stable/c/ed1cba039309c80b49719fcff3e3d7cdddb73d96
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.324