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CVE-2023-30456

Good to know:

Date: April 9, 2023

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.

Language: C

Severity Score

6.5

Related Resources (9)

Url: https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html

Url: http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html

Url: https://nvd.nist.gov/vuln/detail/CVE-2023-30456

Url: https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.8

Url: https://security.netapp.com/advisory/ntap-20230511-0007/

Url: https://github.com/torvalds/linux/commit/112e66017bff7f2837030f34c2bc19501e9212d5

Url: https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html

Url: https://access.redhat.com/security/cve/CVE-2023-30456

Url: https://www.mend.io/vulnerability-database/CVE-2023-30456

Severity Score

6.5

Weakness Type (CWE)

Improper Check for Unusual or Exceptional Conditions

CWE-754

Insufficient Information

NVD-CWE-noinfo

Top Fix

Upgrade Version

Upgrade to version linux-libc-headers - 5.14

CVSS v3.1

Base Score:	6.5
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	CHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

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