CVE-2022-42327 - Vulnerability Details - OpenCVE

x86: unintended memory sharing between guests On Intel systems that support the "virtualize APIC accesses" feature, a guest can read and write the global shared xAPIC page by moving the local APIC out of xAPIC mode. Access to this shared page bypasses the expected isolation that should exist between two guests.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Fedoraproject	Fedora
Xen	Xen

Configuration 1 [-]

cpe:2.3:o:xen:xen:4.16:*:*:*:*:*:x86:*

Configuration 2 [-]

OR	cpe:2.3:o:fedoraproject:fedora:36:::::::*
	cpe:2.3:o:fedoraproject:fedora:37:::::::*

No data.

References

Link	Providers
http://www.openwall.com/lists/oss-security/2022/11/01/3
http://xenbits.xen.org/xsa/advisory-412.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
https://security.gentoo.org/glsa/202402-07
https://xenbits.xenproject.org/xsa/advisory-412.txt

History

Mon, 05 May 2025 19:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-284
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: XEN

Published: 2022-11-01T00:00:00.000Z

Updated: 2025-05-05T19:11:37.065Z

Reserved: 2022-10-03T00:00:00.000Z

Link: CVE-2022-42327

Vulnrichment

Updated: 2024-08-03T13:03:45.969Z

NVD

Status : Modified

Published: 2022-11-01T13:15:12.163

Modified: 2025-05-05T20:15:18.900

Link: CVE-2022-42327

Redhat

No data.

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