NULL pointer dereference in Linux kernel - CVE-2023-52487
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90625
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-2023-52487
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 mlx5e_tc_del_fdb_peer_flow() function in drivers/net/ethernet/mellanox/mlx5/core/en_tc.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/74cec142f89bf85c6c99c5db957da9f663f9f16f
- https://git.kernel.org/stable/c/e24d6f5a7f2d95a98a46257a5a5a5381d572894f
- https://git.kernel.org/stable/c/d76fdd31f953ac5046555171620f2562715e9b71
- 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