CVE-2023-30456

Updated: 2025-08-20 02:46:40.05959

Description:

An issue was discovered in arch/x86/kvm/vmx/nested.c in the Linux kernel before 6.2.8. nVMX on x86_64 lacks consistency checks for CR0 and CR4.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0.0
CVSS Version 3.x MEDIUM 6.5

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

AlmaLinux 9.2 ESU kernel 5.14.0 6.5 MEDIUM Released CLSA-2025:1743193221 2024-06-24 11:28:24
CentOS 6 ELS kernel 2.6.32 6.5 MEDIUM Not Vulnerable 2023-05-01 05:04:52
CentOS 7 ELS kernel 3.10.0 6.5 MEDIUM Ignored 2023-09-19 05:07:24 Ignored due to low severity
CentOS 8.4 ELS kernel 4.18.0 6.5 MEDIUM Released CLSA-2023:1686585068 2023-06-13 09:05:49
CentOS 8.5 ELS kernel 4.18.0 6.5 MEDIUM Released CLSA-2023:1686651204 2023-06-13 09:05:50
CentOS Stream 8 ELS kernel 4.18.0 6.5 MEDIUM Ignored 2024-06-24 11:20:01 Ignored due to low severity
CloudLinux 6 ELS kernel 2.6.32 6.5 MEDIUM Not Vulnerable 2023-05-01 05:04:52
CloudLinux 7 ELS kernel 3.10.0 6.5 MEDIUM Ignored 2024-10-03 10:51:59 Ignored due to low severity
Oracle Linux 6 ELS kernel 2.6.32 6.5 MEDIUM Not Vulnerable 2023-05-01 05:04:52
Ubuntu 16.04 ELS linux-hwe 4.15.0 6.5 MEDIUM Released CLSA-2023:1685972472 2023-06-05 11:05:21
Total: 12