Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2023-27471

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
18/08/2023
Last modified:
24/08/2023

Description

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. UEFI implementations do not correctly protect and validate information contained in the 'MeSetup' UEFI variable. On some systems, this variable can be overwritten using operating system APIs. Exploitation of this vulnerability could potentially lead to denial of service for the platform.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:insyde:insydeh2o:5.0:*:*:*:*:*:*:*
cpe:2.3:a:insyde:insydeh2o:5.1:*:*:*:*:*:*:*
cpe:2.3:a:insyde:insydeh2o:5.2:*:*:*:*:*:*:*
cpe:2.3:a:insyde:insydeh2o:5.3:*:*:*:*:*:*:*
cpe:2.3:a:insyde:insydeh2o:5.4:*:*:*:*:*:*:*
cpe:2.3:a:insyde:insydeh2o:5.5:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools