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

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CVE-2023-31355

Severity CVSS v4.0:
Pending analysis
Type:
CWE-119 Buffer Errors
Publication date:
05/08/2024
Last modified:
26/11/2024

Description

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.

Impact

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

Base Score: 6.00 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

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

Base Score 3.x
6.00
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:amd:epyc_7203_firmware:*:*:*:*:*:*:*:* milanpi_1.0.0.d (excluding)
cpe:2.3:h:amd:epyc_7203:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7203p_firmware:*:*:*:*:*:*:*:* milanpi_1.0.0.d (excluding)
cpe:2.3:h:amd:epyc_7203p:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:* milanpi_1.0.0.d (excluding)
cpe:2.3:h:amd:epyc_72f3:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7303_firmware:*:*:*:*:*:*:*:* milanpi_1.0.0.d (excluding)
cpe:2.3:h:amd:epyc_7303:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7303p_firmware:*:*:*:*:*:*:*:* milanpi_1.0.0.d (excluding)
cpe:2.3:h:amd:epyc_7303p:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:* milanpi_1.0.0.d (excluding)
cpe:2.3:h:amd:epyc_7313:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:* milanpi_1.0.0.d (excluding)
cpe:2.3:h:amd:epyc_7313p:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:* milanpi_1.0.0.d (excluding)

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


References to Advisories, Solutions, and Tools