CVE-2023-39283

Severity CVSS v4.0:

Pending analysis

Type:

CWE-787 Out-of-bounds Write

Publication date:

02/11/2023

Last modified:

10/11/2023

Description

An SMM memory corruption vulnerability in the SMM driver (SMRAM write) in CsmInt10HookSmm in Insyde InsydeH2O with kernel 5.0 through 5.5 allows attackers to send arbitrary data to SMM which could lead to privilege escalation.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:insyde:insydeh2o::::::::	5.0 (including)	5.5 (including)
cpe:2.3:a:insyde:insydeh2o:5.5.05.53.22:::::::*
cpe:2.3:a:insyde:insydeh2o:5.6:::::::*
cpe:2.3:a:insyde:insydeh2o:5.6.05.60.22:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-39283

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools