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

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CVE-2018-8934

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
22/03/2018
Last modified:
03/10/2019

Description

The Promontory chipset, as used in AMD Ryzen and Ryzen Pro platforms, has a backdoor in firmware, aka CHIMERA-FW.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.00 CRITICAL
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

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

Base Score 3.x
9.00
Severity 3.x
CRITICAL
Vector 2.0
AV:N/AC:M/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 9.30 HIGH
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
9.30
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:amd:ryzen_pro_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:ryzen_pro:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:amd:ryzen:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools