// For flags

CVE-2021-44149

 

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Se ha detectado un problema en Trusted Firmware OP-TEE Trusted OS versiones hasta 3.15.0. El controlador CSU de OPTEE-OS para los dispositivos SoC NXP i.MX6UL carece de la configuración de acceso de seguridad para los registros relacionados con el wakeup, resultando en una omisión de TrustZone porque el Mundo no Seguro puede llevar a cabo operaciones de lectura/escritura de memoria arbitrarias en la memoria del Mundo Seguro. Esto implica un ciclo v

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-11-22 CVE Reserved
  • 2021-12-07 CVE Published
  • 2024-08-04 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linaro
Search vendor "Linaro"
 Op-tee
Search vendor "Linaro" for product "Op-tee"
 <= 3.15.0
Search vendor "Linaro" for product "Op-tee" and version " <= 3.15.0"
-
Affected
in Nxp
Search vendor "Nxp"
 I.mx 6ultralite
Search vendor "Nxp" for product "I.mx 6ultralite"
--
Safe