#VU91065 Use-after-free in Linux kernel - CVE-2023-52576
Published: June 4, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91065
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-2023-52576
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 add_early_ima_buffer() function in arch/x86/kernel/setup.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/eef16bfdb212da60f5144689f2967fb25b051a2b
- https://git.kernel.org/stable/c/d2dfbc0e3b7a04c2d941421a958dc31c897fb204
- https://git.kernel.org/stable/c/34cf99c250d5cd2530b93a57b0de31d3aaf8685b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.56
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6