CVEvulnerability
CVE-2021-40327
5.9 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-01-13
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 2.6 LOW — AV:N/AC:H/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-862
Description
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.
Affected configurations
• trustedfirmware trusted firmware-m 1.4.0
Related
Weakness · CWE (1)
- CWE-862 Missing Authorization weakness
References
- https://developer.arm.com/support/arm-security-updates Third Party Advisory
- https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/ Patch, Vendor Advisory
- https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.html Patch, Vendor Advisory
- https://developer.arm.com/support/arm-security-updates Third Party Advisory
- https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/ Patch, Vendor Advisory
- https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.html Patch, Vendor Advisory