CVE-2021-44149

Published: Dec 7, 2021Modified: Jun 17, 2026

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

An issue was discovered in Trusted Firmware OP-TEE Trusted OS through 3.15.0. The OPTEE-OS CSU driver for NXP i.MX6UL SoC devices lacks security access configuration for wakeup-related registers, resulting in TrustZone bypass because the NonSecure World can perform arbitrary memory read/write operations on Secure World memory. This involves a v cycle.

Affected (1)

Products: Trustedfirmware: Op Tee

Trustedfirmware

1 product

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Trustedfirmware Op Tee	Up to 3.15.0

Running on/with	Platform Versions
Nxp I.mx 6ultralite	All versions

References (4)

https://github.com/OP-TEE/optee_os/tags

Source: cve@mitre.org

Release NotesThird Party Advisory

https://github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2021-0002-OP-TEE_TrustZone_bypass_at_wakeup.txt

Source: cve@mitre.org

Third Party Advisory

https://github.com/OP-TEE/optee_os/tags

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesThird Party Advisory

https://github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2021-0002-OP-TEE_TrustZone_bypass_at_wakeup.txt

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.