CVE-2023-6111 HIGH

CVE-2023-6111: Use-after-free in Linux kernel's netfilter: nf_tables component

Vendor Linux
Product Kernel
Weakness CWE-416
Published November 14, 2023
Last update February 13, 2025
View on NVD All CVEs

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.

Key dates

02Disclosure timeline

November 14, 2023 CVE published
February 13, 2025 Record updated