CVE Vulnerability

CVE-2021-40327

Trusted Firmware-M (TF-M) 1.4.0, when Profile Small is used, has incorrect access control. NSPE can access a secure key (held by the Crypto service) based solely on knowledge of its key ID. For example, there is no authorization check associated with the relationship between a caller and a key owner.

2.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 4.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

5.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/ Patch Vendor Advisory
https://developer.arm.com/support/arm-security-updates Third Party Advisory
https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.html Patch Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:trustedfirmware:trusted_firmware-m:1.4.0:*:*:*:*:*:*:*
Information

Published : 2022-01-13 04:15

Updated : 2022-01-25 02:35

NVD link : CVE-2021-40327

Mitre link : CVE-2021-40327

Products Affected
No products.
CWE
CWE-862