CVE-2022-32250

net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free.

CVSS v3.1

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

CVSS v2.0

7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS

2.91% chance of exploitation in the next 30 days, 86th percentile

Published

2022-06-02

Updated

2024-08-03

Proof-of-concept exploits (9)

• http://www.openwall.com/lists/oss-security/2022/06/03/1
• https://blog.theori.io/research/CVE-2022-32250-linux-kernel-lpe-2022/
• https://www.openwall.com/lists/oss-security/2022/05/31/1
• theori-io/CVE-2022-32250-exploit187★ · 2023-06-18
• Kristal-g/CVE-2022-322502★ · 2024-06-09
• Trickhish/automated_privilege_escalation1★ · 2024-01-20
• seadragnol/CVE-2022-322503★ · 2024-12-07
• ysanatomic/CVE-2022-32250-LPE9★ · 2023-02-04
• yashbutani/Kernel-Surgeon

References

• CVE Record
• NVD entry

Related

• CVE-2016-0189
• CVE-2016-7200
• CVE-2016-7201
• CVE-2022-26717
• CVE-2026-31431
• CVE-2021-40449