CVE-2020-12926

The Trusted Platform Modules (TPM) reference software may not properly track the number of times a failed shutdown happens. This can leave the TPM in a state where confidential key material in the TPM may be able to be compromised. AMD believes that the attack requires physical access of the device because the power must be repeatedly turned on and off. This potential attack may be used to change confidential information, alter executables signed by key material in the TPM, or create a denial of service of the device.

CVSS v3 6.4 MEDIUM
CVSS v2.0 4.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.5 / Impact : 5.9

Attack Vector PHYSICAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.4^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 3.4 / Impact : 6.4

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.amd.com/en/corporate/product-security	Vendor Advisory
https://www.amd.com/en/corporate/product-security	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:amd:trusted_platform_modules_reference:-:*:*:*:*:*:*:*

History

21 Nov 2024, 05:00

Type	Values Removed	Values Added
References	~~() https://www.amd.com/en/corporate/product-security - Vendor Advisory~~	() https://www.amd.com/en/corporate/product-security - Vendor Advisory

Information

Published : 2020-11-12 20:15

Updated : 2024-11-21 05:00

NVD link : CVE-2020-12926

Mitre link : CVE-2020-12926

CVE.ORG link : CVE-2020-12926

JSON object : View

Products Affected

amd

trusted_platform_modules_reference

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

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