PT-2022-26367 · Intel+1 · Intel+1

Andrew Cooper · Published 2022-11-01 · Updated 2025-05-05 · CVE-2022-42327

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions No specific software or versions are mentioned in the provided descriptions.

Description The issue concerns 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, bypassing the expected isolation between two guests.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2022-42327

OPENSUSE-SU-2022_4007-1

SUSE-SU-2022:4007-1

Affected Products

Intel

Suse

References · 55

• https://osv.dev/vulnerability/UBUNTU-CVE-2022-42327 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-42327 · Security Note
• https://cve.org/CVERecord?id=CVE-2022-42327 · Security Note
• https://osv.dev/vulnerability/CVE-2022-42327 · Vendor Advisory
• https://xenbits.xenproject.org/xsa/advisory-412.txt · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:4007-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ · Vendor Advisory
• http://xenbits.xen.org/xsa/advisory-412.html · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-42327 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-42327 · Vendor Advisory
• https://security.gentoo.org/glsa/202402-07 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2022-42327 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-42327 · Vendor Advisory
• http://openwall.com/lists/oss-security/2022/11/01/3 · Patch