#VU111435 Use-after-free in Linux kernel - CVE-2022-50213
Published: June 19, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111435
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:U/U:Clear
CVE-ID: CVE-2022-50213
CWE-ID: CWE-416
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 escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the nft_set_lookup_byhandle(), nft_set_lookup_byid() and nft_set_lookup_global() functions in net/netfilter/nf_tables_api.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/0d07039397527361850c554c192e749cfc879ea9
- https://git.kernel.org/stable/c/1a4b18b1ff11ba26f9a852019d674fde9d1d1cff
- https://git.kernel.org/stable/c/470ee20e069a6d05ae549f7d0ef2bdbcee6a81b2
- https://git.kernel.org/stable/c/77d3b5038b7462318f5183e2ad704b01d57215a2
- https://git.kernel.org/stable/c/f4fa03410f7c5f5bd8f90e9c11e9a8c4b526ff6f
- https://git.kernel.org/stable/c/faafd9286f1355c76fe9ac3021c280297213330e
- https://git.kernel.org/stable/c/fab2f61cc3b0e441b1749f017cfee75f9bbaded7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.211