Improper locking in Linux kernel - CVE-2023-52666
Published: June 8, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91518
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-2023-52666
CWE-ID: CWE-667
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 improper locking within the smb2_set_ea(), smb2_open() and smb2_set_info_file() functions in fs/ksmbd/smb2pdu.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/5349fd419e4f685d609c85b781f2b70f0fb14848
- https://git.kernel.org/stable/c/e61fc656ceeaec65f19a92f0ffbeb562b7941e8d
- https://git.kernel.org/stable/c/e9ec6665de8f706b4f4133b87b2bd02a159ec57b
- https://git.kernel.org/stable/c/ecfd93955994ecc2a1308f5ee4bd90c7fca9a8c6
- https://git.kernel.org/stable/c/6fc0a265e1b932e5e97a038f99e29400a93baad0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.149
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.76
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8