CVE-2023-42753

Updated: 2025-08-20 00:30:10.455407

Description:

An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer out-of-bound. This issue may allow a local user to crash the system or potentially escalate their privileges on the system.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0.0
CVSS Version 3.x HIGH 7.8

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

AlmaLinux 9.2 ESU kernel 5.14.0 7.8 HIGH Released CLSA-2024:1712570434 2024-04-08 10:43:27
CentOS 6 ELS kernel 2.6.32 7.8 HIGH Not Vulnerable 2023-12-26 13:13:11
CentOS 7 ELS kernel 3.10.0 7.8 HIGH Released CLSA-2024:1720468480 2024-07-23 17:31:20
CentOS 8.4 ELS kernel 4.18.0 7.8 HIGH Released CLSA-2023:1701963303 2023-12-07 13:13:43
CentOS 8.5 ELS kernel 4.18.0 7.8 HIGH Released CLSA-2023:1701962635 2023-12-07 13:13:44
CloudLinux 6 ELS kernel 2.6.32 7.8 HIGH Not Vulnerable 2024-05-08 10:22:25
Oracle Linux 6 ELS kernel 2.6.32 7.8 HIGH Not Vulnerable 2023-12-26 13:13:11
RHEL 7 ELS kernel 3.10.0 7.8 HIGH Released CLSA-2025:1750353839 2025-06-20 00:27:55
Ubuntu 16.04 ELS linux-hwe 4.15.0 7.8 HIGH Released CLSA-2023:1695902773 2023-09-28 09:29:55
Ubuntu 16.04 ELS linux 4.4.0 7.8 HIGH Released CLSA-2023:1695901231 2023-09-28 09:29:53
Total: 11