NULL pointer dereference in Linux kernel - CVE-2023-52458
Published: June 1, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90657
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-2023-52458
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 blkpg_do_ioctl() function in block/ioctl.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/5010c27120962c85d2f421d2cf211791c9603503
- https://git.kernel.org/stable/c/ef31cc87794731ffcb578a195a2c47d744e25fb8
- https://git.kernel.org/stable/c/cb16cc1abda18a9514106d2ac8c8d7abc0be5ed8
- https://git.kernel.org/stable/c/bcdc288e7bc008daf38ef0401b53e4a8bb61bbe5
- https://git.kernel.org/stable/c/6f64f866aa1ae6975c95d805ed51d7e9433a0016
- https://git.kernel.org/stable/c/8f6dfa1f1efe6dcca2d43e575491d8fcbe922f62
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.215