CVE-2022-32475

2023-02-1514:15:11

CWE-367

[email protected]

web.nvd.nist.gov

cve

insyde insydeh2o

kernel

toctou

race-condition

smram

privilege escalation

nvd

security vulnerability

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.1 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.1%

JSON

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the VariableRuntimeDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This issue was fixed in the kernel, which also protected chipset and OEM chipset code.

Affected configurations

NVD

Node

insydeinsydeh2oRange5.0–5.2.05.27.27

insydeinsydeh2oRange5.3–5.3.05.36.27

insydeinsydeh2oRange5.4–5.4.05.44.27

insydeinsydeh2oRange5.5–5.5.05.52.27

CPENameOperatorVersion
insyde:insydeh2oinsyde insydeh2olt5.2.05.27.27
insyde:insydeh2oinsyde insydeh2olt5.3.05.36.27
insyde:insydeh2oinsyde insydeh2olt5.4.05.44.27
insyde:insydeh2oinsyde insydeh2olt5.5.05.52.27

CPE	Name	Operator	Version
insyde:insydeh2o	insyde insydeh2o	lt	5.2.05.27.27
insyde:insydeh2o	insyde insydeh2o	lt	5.3.05.36.27
insyde:insydeh2o	insyde insydeh2o	lt	5.4.05.44.27
insyde:insydeh2o	insyde insydeh2o	lt	5.5.05.52.27