CVE-2024-0193 HIGH

CVE-2024-0193: Kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-416
Published January 2, 2024
Last update March 4, 2026
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 flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFT_CHAIN object or NFT_OBJECT object, allowing a local unprivileged user with CAP_NET_ADMIN capability to escalate their privileges on the system.

Key dates

02Disclosure timeline

January 2, 2024 CVE published
March 4, 2026 Record updated