#VU79713 Use-after-free in Linux kernel - CVE-2023-4147 

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Main Vulnerability Database Vulnerabilities #VU79713

#VU79713 Use-after-free in Linux kernel - CVE-2023-4147

Published: August 20, 2023 / Updated: January 3, 2025


Vulnerability identifier: #VU79713
Vulnerability risk: 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:P/U:Clear
CVE-ID: CVE-2023-4147
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: Public exploit is available
Vulnerable software:
Linux kernel
Software vendor:
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 in Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.


Remediation

Install updates from vendor's website.

External links