CVE-2022-42327
7.1 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
6.7 Medium
AI Score
Confidence
High
3.2 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:S/C:P/I:P/A:N
0.0005 Low
EPSS
Percentile
16.8%
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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| xen:xen | xen | eq | 4.16 |
| fedoraproject:fedora | fedoraproject fedora | eq | 36 |
| fedoraproject:fedora | fedoraproject fedora | eq | 37 |
References
www.openwall.com/lists/oss-security/2022/11/01/3
xenbits.xen.org/xsa/advisory-412.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/
security.gentoo.org/glsa/202402-07
xenbits.xenproject.org/xsa/advisory-412.txt
Social References
More
Related
7.1 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
6.7 Medium
AI Score
Confidence
High
3.2 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:S/C:P/I:P/A:N
0.0005 Low
EPSS
Percentile
16.8%