Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2021-46755

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
09/05/2023
Last modified:
28/01/2025

Description

Failure to unmap certain SysHub mappings in<br /> error paths of the ASP (AMD Secure Processor) bootloader may allow an attacker<br /> with a malicious bootloader to exhaust the SysHub resources resulting in a<br /> potential denial of service.<br /> <br /> <br /> <br /> <br />

Impact

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

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

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
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:ryzen_5500_firmware:comboam4_v2_pi_1.2.0.8:*:*:*:*:*:*:*
cpe:2.3:h:amd:ryzen_5500:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5500_firmware:comboam4v2_pi_1.2.0.6:*:*:*:*:*:*:*
cpe:2.3:h:amd:ryzen_5500:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5600_firmware:comboam4_v2_pi_1.2.0.8:*:*:*:*:*:*:*
cpe:2.3:h:amd:ryzen_5600:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5600_firmware:comboam4v2_pi_1.2.0.6:*:*:*:*:*:*:*
cpe:2.3:h:amd:ryzen_5600:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5600g_firmware:comboam4_v2_pi_1.2.0.8:*:*:*:*:*:*:*
cpe:2.3:h:amd:ryzen_5600g:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5600g_firmware:comboam4v2_pi_1.2.0.6:*:*:*:*:*:*:*
cpe:2.3:h:amd:ryzen_5600g:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5600x_firmware:comboam4_v2_pi_1.2.0.8:*:*:*:*:*:*:*
cpe:2.3:h:amd:ryzen_5600x:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5600x_firmware:comboam4v2_pi_1.2.0.6:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools