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

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CVE-2021-26408

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
10/05/2022
Last modified:
17/05/2022

Description

Insufficient validation of elliptic curve points in SEV-legacy firmware may compromise SEV-legacy guest migration potentially resulting in loss of guest's integrity or confidentiality.

Impact

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

Base Score: 7.10 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

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

Base Score 3.x
7.10
Severity 3.x
HIGH
Vector 2.0
AV:L/AC:L/Au:N/C:C/I:C/A:N CVSS v2.0 Severity and Metrics:

Base Score: 6.60 MEDIUM
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:N

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

Base Score 2.0
6.60
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:amd:epyc_7002_firmware:*:*:*:*:*:*:*:* romepi-sp3_1.0.0.c (excluding)
cpe:2.3:h:amd:epyc_7002:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7001_firmware:*:*:*:*:*:*:*:* naplespi-sp3_1.0.0.g (excluding)
cpe:2.3:h:amd:epyc_7001:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7232p_firmware:*:*:*:*:*:*:*:* romepi-sp3_1.0.0.c (excluding)
cpe:2.3:h:amd:epyc_7232p:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7252_firmware:*:*:*:*:*:*:*:* romepi-sp3_1.0.0.c (excluding)
cpe:2.3:h:amd:epyc_7252:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7262_firmware:*:*:*:*:*:*:*:* romepi-sp3_1.0.0.c (excluding)
cpe:2.3:h:amd:epyc_7262:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7272_firmware:*:*:*:*:*:*:*:* romepi-sp3_1.0.0.c (excluding)
cpe:2.3:h:amd:epyc_7272:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7282_firmware:*:*:*:*:*:*:*:* romepi-sp3_1.0.0.c (excluding)
cpe:2.3:h:amd:epyc_7282:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7302_firmware:*:*:*:*:*:*:*:* romepi-sp3_1.0.0.c (excluding)

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


References to Advisories, Solutions, and Tools