Updated: 2026-02-27 00:12:20.8681
Description:
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage collection, it is possible to underflow the reference counter causing a use-after-free vulnerability. We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 7.0 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 7.0 | HIGH | Released | CLSA-2024:1715000749 | 2024-05-06 14:32:08 | |
| CentOS 6 ELS | kernel | 2.6.32 | 7.0 | HIGH | Not Vulnerable | 2023-09-29 05:08:33 | ||
| CentOS 7 ELS | kernel | 3.10.0 | 7.0 | HIGH | Not Vulnerable | 2025-10-17 10:15:36 | ||
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.0 | HIGH | Ignored | 2025-07-02 01:19:08 | Potential fix risks regressions, Medium impact, Attack surface is 8.4/8.5 is lower, most introducing... | |
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.0 | HIGH | Ignored | 2025-07-02 01:19:09 | Potential fix risks regressions, Medium impact, Attack surface is 8.4/8.5 is lower, most introducing... | |
| CentOS Stream 8 ELS | kernel | 4.18.0 | 7.0 | HIGH | Already Fixed | 2025-07-22 00:48:38 | ||
| CloudLinux 6 ELS | kernel | 2.6.32 | 7.0 | HIGH | Not Vulnerable | 2023-09-29 05:08:33 | ||
| Oracle Linux 6 ELS | kernel | 2.6.32 | 7.0 | HIGH | Not Vulnerable | 2023-09-29 05:08:32 | ||
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 7.0 | HIGH | Released | CLSA-2024:1705079299 | 2024-01-12 13:14:41 | |
| Ubuntu 16.04 ELS | linux | 4.4.0 | 7.0 | HIGH | Released | CLSA-2024:1706545934 | 2024-01-29 13:17:18 |