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

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CVE-2023-20578

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
13/08/2024
Last modified:
18/03/2025

Description

A TOCTOU (Time-Of-Check-Time-Of-Use) in SMM may allow<br /> an attacker with ring0 privileges and access to the<br /> BIOS menu or UEFI shell to modify the communications buffer potentially<br /> resulting in arbitrary code execution.

Impact

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

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

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

Base Score 3.x
7.50
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:amd:epyc_8024pn_firmware:*:*:*:*:*:*:*:* genoapi_1.0.0.2 (excluding)
cpe:2.3:h:amd:epyc_8024pn:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8024p_firmware:*:*:*:*:*:*:*:* genoapi_1.0.0.2 (excluding)
cpe:2.3:h:amd:epyc_8024p:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8124pn_firmware:*:*:*:*:*:*:*:* genoapi_1.0.0.2 (excluding)
cpe:2.3:h:amd:epyc_8124pn:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8124p_firmware:*:*:*:*:*:*:*:* genoapi_1.0.0.2 (excluding)
cpe:2.3:h:amd:epyc_8124p:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8224pn_firmware:*:*:*:*:*:*:*:* genoapi_1.0.0.2 (excluding)
cpe:2.3:h:amd:epyc_8224pn:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8224p_firmware:*:*:*:*:*:*:*:* genoapi_1.0.0.2 (excluding)
cpe:2.3:h:amd:epyc_8224p:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8324pn_firmware:*:*:*:*:*:*:*:* genoapi_1.0.0.2 (excluding)
cpe:2.3:h:amd:epyc_8324pn:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_8324p_firmware:*:*:*:*:*:*:*:* genoapi_1.0.0.2 (excluding)

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


References to Advisories, Solutions, and Tools