In Mbed TLS before 2.28.0 and 3.x before 3.1.0, psa_cipher_generate_iv and psa_cipher_encrypt allow policy bypass or oracle-based decryption when the output buffer is at memory locations accessible to an untrusted application.

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-32221 In Mbed TLS before 2.28.0 and 3.x before 3.1.0, psa_cipher_generate_iv and psa_cipher_encrypt allow policy bypass or oracle-based decryption when the output buffer is at memory locations accessible to an untrusted application.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 05 Jun 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Trustedfirmware
Trustedfirmware mbed Tls
CPEs cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
cpe:2.3:a:arm:mbed_tls:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:*
cpe:2.3:a:trustedfirmware:mbed_tls:3.0.0:*:*:*:*:*:*:*
Vendors & Products Arm
Arm mbed Tls
Trustedfirmware
Trustedfirmware mbed Tls

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T04:39:21.039Z

Reserved: 2021-12-21T00:00:00.000Z

Link: CVE-2021-45450

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-12-21T07:15:06.727

Modified: 2026-06-05T19:38:32.047

Link: CVE-2021-45450

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses