CVE-2023-30456

2023-04-1000:00:00

ubuntu.com

cve-2023-30456

bugzilla

x86_64

nested virtualization

linux kernel

cr0

cr4

security

CVSS3

6.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS

Percentile

14.5%

JSON

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.

Bugs

<https://bugzilla.suse.com/show_bug.cgi?id=1210294>

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-212.223UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-150.167UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-73.80UNKNOWN
ubuntu22.10noarchlinux< 5.19.0-43.44UNKNOWN
ubuntu23.04noarchlinux< 6.2.0-23.23UNKNOWN
ubuntu14.04noarchlinux< 3.13.0-197.248UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-241.275UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1157.170UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1103.111UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1037.41UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-212.223	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-150.167	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-73.80	UNKNOWN
ubuntu	22.10	noarch	linux	< 5.19.0-43.44	UNKNOWN
ubuntu	23.04	noarch	linux	< 6.2.0-23.23	UNKNOWN
ubuntu	14.04	noarch	linux	< 3.13.0-197.248	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-241.275	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1157.170	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1103.111	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1037.41	UNKNOWN