CVE-2022-42327

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-42327
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.

7.1 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
http://www.openwall.com/lists/oss-security/2022/11/01/3 Mailing List Patch Third Party Advisory
http://xenbits.xen.org/xsa/advisory-412.html Patch Vendor Advisory
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 Vendor Advisory
http://www.openwall.com/lists/oss-security/2022/11/01/3 Mailing List Patch Third Party Advisory
http://xenbits.xen.org/xsa/advisory-412.html Patch Vendor Advisory
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 Vendor Advisory
Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

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

05 May 2025, 20:15

Type Values Removed Values Added
CWE CWE-284

21 Nov 2024, 07:24

Type Values Removed Values Added
References () 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 - Mailing List, Patch, Third Party Advisory
References () http://xenbits.xen.org/xsa/advisory-412.html - Patch, Vendor Advisory () http://xenbits.xen.org/xsa/advisory-412.html - Patch, Vendor Advisory
References () 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/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/ -
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/ -
References () https://security.gentoo.org/glsa/202402-07 - () https://security.gentoo.org/glsa/202402-07 -
References () https://xenbits.xenproject.org/xsa/advisory-412.txt - Vendor Advisory () https://xenbits.xenproject.org/xsa/advisory-412.txt - Vendor Advisory

24 Nov 2022, 03:15

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/ -

09 Nov 2022, 14:15

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/ -

04 Nov 2022, 02:09

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.1
CWE NVD-CWE-noinfo
CPE cpe:2.3:o:xen:xen:4.16:*:*:*:*:*:x86:*
References (MLIST) http://www.openwall.com/lists/oss-security/2022/11/01/3 - (MLIST) http://www.openwall.com/lists/oss-security/2022/11/01/3 - Mailing List, Patch, Third Party Advisory
References (CONFIRM) http://xenbits.xen.org/xsa/advisory-412.html - (CONFIRM) http://xenbits.xen.org/xsa/advisory-412.html - Patch, Vendor Advisory
References (MISC) https://xenbits.xenproject.org/xsa/advisory-412.txt - (MISC) https://xenbits.xenproject.org/xsa/advisory-412.txt - Vendor Advisory

01 Nov 2022, 15:15

Type Values Removed Values Added
References
  • (MLIST) http://www.openwall.com/lists/oss-security/2022/11/01/3 -
  • (CONFIRM) http://xenbits.xen.org/xsa/advisory-412.html -

01 Nov 2022, 13:38

Type Values Removed Values Added
New CVE
Information

Published : 2022-11-01 13:15

Updated : 2025-05-05 20:15

NVD link : CVE-2022-42327

Mitre link : CVE-2022-42327

CVE.ORG link : CVE-2022-42327

JSON object : View

Products Affected

xen

  • xen

fedoraproject

  • fedora
CWE
NVD-CWE-noinfo CWE-284

Improper Access Control