CVE-2023-32233

In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled.

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 v3.1

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

EPSS

12.97% chance of exploitation in the next 30 days, 96th percentile

Published

2023-05-08

Updated

2025-05-05

Proof-of-concept exploits (9)

• Liuk3r/CVE-2023-32233382★ · 2023-05-16
• PIDAN-HEIDASHUAI/CVE-2023-322333★ · 2023-05-16
• RogelioPumajulca/TEST-CVE-2023-322330★ · 2024-02-04
• djki5s/tools1★ · 2023-07-16
• oferchen/POC-CVE-2023-3223353★ · 2023-06-20
• void0red/CVE-2023-322331★ · 2024-04-01
• BurnSkyup/CVE-2023-32233-reproduction
• Destawell/gemini-2.5-pro-nf-tables-red-teaming
• ChristopherPatrickKuntz/bifrost-infrastructure-disclosure

References

• CVE Record
• NVD entry

Related

• CVE-2022-0847
• CVE-2023-0386
• CVE-2023-2235
• CVE-2023-3269
• CVE-2023-35001
• CVE-2023-3219