Use-after-free in Linux kernel - CVE-2023-52566
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90238
CSH Severity: 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-2023-52566
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 nilfs_gccache_submit_read_data() function in fs/nilfs2/gcinode.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/fb1084e63ee56958b0a56e17a50a4fd86445b9c1
- https://git.kernel.org/stable/c/bb61224f6abc8e71bfdf06d7c984e23460875f5b
- https://git.kernel.org/stable/c/193b5a1c6c67c36b430989dc063fe7ea4e200a33
- https://git.kernel.org/stable/c/7130a87ca32396eb9bf48b71a2d42259ae44c6c7
- https://git.kernel.org/stable/c/3936e8714907cd55e37c7cc50e50229e4a9042e8
- https://git.kernel.org/stable/c/980663f1d189eedafd18d80053d9cf3e2ceb5c8c
- https://git.kernel.org/stable/c/28df4646ad8b433340772edc90ca709cdefc53e2
- https://git.kernel.org/stable/c/7ee29facd8a9c5a26079148e36bcf07141b3a6bc
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.327
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.296
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.198
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.134
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.258
- 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