#VU90066 Use-after-free in Linux kernel - CVE-2023-52771
Published: May 30, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90066
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-52771
CWE-ID: CWE-416
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 escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the grandparent() function in drivers/cxl/core/port.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/37179fcc916bce8c3cc7b36d67ef814cce55142b
- https://git.kernel.org/stable/c/6b2e428e673b3f55965674a426c40922e91388aa
- https://git.kernel.org/stable/c/8d2ad999ca3c64cb08cf6a58d227b9d9e746d708
- 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