CVE-2023-30456 : An issue was discovered in arch/x86/kvm/vmx/nested.c in the Linux kernel before

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.

Published 2023-04-10 02:15:07

Updated 2025-03-19 16:15:22

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2023-30456

Linux » Linux Kernel
Versions before (<) 6.2.8
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 6.3 Update RC1
cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel » Version: 6.3 Update RC2
cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.01%

Probability of exploitation activity in the next 30 days EPSS Score History

~ %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
6.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H	2.0	4.0	134c704f-9b21-4f2e-91b3-4a467353bcc0	2025-03-19
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Changed Confidentiality: None Integrity: None Availability: High
6.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H	2.0	4.0	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Changed Confidentiality: None Integrity: None Availability: High

CWE-754 Improper Check for Unusual or Exceptional Conditions

The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.

Assigned by: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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