NULL pointer dereference in Linux kernel - CVE-2023-5972
Published: February 8, 2024
Vulnerability identifier: #VU86244
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-2023-5972
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 a NULL pointer dereference error within the nft_inner_init() and nft_expr_inner_parse() functions in nft_inner.c. A local user can set specially crafted values for the NFTA_INNER_NUM and NFTA_EXPR_NAM netlink attributes and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.