🛡️ CVE-2022-42327
🟠 CVSS 7.1 — High ✅ No Known Exploit CWE-284 NVD
7.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity HIGH
CVSS Score 7.1
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE CWE-284
Public Exploit ✅ No
Source NVD
Published 2022-11-01
Updated 2026-06-08
Modified 2025-05-05

Affected Packages

Software From version Fixed in
fedora
xen

References

Mailing List, Patch, Third Party Advisory http://www.openwall.com/lists/oss-security/2022/11/01/3
Mailing List, Patch, Third Party Advisory http://www.openwall.com/lists/oss-security/2022/11/01/3

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