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ubuntucveUbuntu.comUB:CVE-2022-3344
HistoryOct 25, 2022 - 12:00 a.m.

CVE-2022-3344

2022-10-2500:00:00
ubuntu.com
ubuntu.com
23
kvm
amd
nested virtualization

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

0.0004 Low

EPSS

Percentile

12.7%

A flaw was found in the KVM’s AMD nested virtualization (SVM). A malicious
L1 guest could purposely fail to intercept the shutdown of a cooperative
nested guest (L2), possibly leading to a page fault and kernel panic in the
host (L0).

Bugs

Notes

Author Note
sbeattie it’s possible only the first two commits are necessary

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

0.0004 Low

EPSS

Percentile

12.7%