Updated: 2026-02-27 02:58:58.56896
Description:
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.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 7.8 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 7.8 | HIGH | Released | 2024-01-19 10:09:40 | ||
| CentOS 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | Not Vulnerable | 2023-06-15 09:07:46 | Not affected: CVE-2023-32233 targets the Netfilter nf_tables subsystem’s handling of anonymous set... | |
| CentOS 7 ELS | kernel | 3.10.0 | 7.8 | HIGH | Already Fixed | 2023-11-15 10:11:06 | ||
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.8 | HIGH | Released | CLSA-2023:1690287378 | 2023-07-25 09:10:45 | |
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.8 | HIGH | Released | CLSA-2023:1690294029 | 2023-07-25 11:06:36 | |
| CloudLinux 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | Not Vulnerable | 2023-06-15 09:07:46 | ||
| Oracle Linux 6 ELS | kernel | 2.6.32 | 7.8 | HIGH | Not Vulnerable | 2023-06-15 09:07:46 | Not affected: CVE-2023-32233 targets the Netfilter nf_tables subsystem’s handling of anonymous set... | |
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 7.8 | HIGH | Released | CLSA-2023:1685972472 | 2023-06-05 11:04:49 | |
| Ubuntu 16.04 ELS | linux | 4.4.0 | 7.8 | HIGH | Released | CLSA-2023:1688072342 | 2023-06-29 17:05:22 | |
| Ubuntu 18.04 ELS | linux | 4.15.0 | 7.8 | HIGH | Released | 2023-08-31 03:18:53 |