CVE-2021-36133
Severity Score
7.1
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
The OPTEE-OS CSU driver for NXP i.MX SoC devices lacks security access configuration for several models, resulting in TrustZone bypass because the NonSecure World can perform arbitrary memory read/write operations on Secure World memory. This involves a DMA capable peripheral.
El controlador CSU de OPTEE-OS para los dispositivos NXP i.MX SoC carece de configuración de acceso de seguridad para varios modelos, resultando en una omisión de TrustZone porque el Mundo no Seguro puede llevar a cabo operaciones arbitrarias de lectura/escritura de memoria en la memoria del Mundo Seguro. Esto implica un periférico con capacidad DMA
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-07-02 CVE Reserved
- 2021-12-07 CVE Published
- 2023-06-30 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-732: Incorrect Permission Assignment for Critical Resource
CAPEC
References (1)
| URL | Tag | Source |
|---|---|---|
| https://github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2021-0001-OP-TEE_TrustZone_bypass.txt | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
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" | - | - |
Affected
| in | Nxp Search vendor "Nxp" | I.mx 6 Search vendor "Nxp" for product "I.mx 6" | - | - |
Safe
|
| Linaro Search vendor "Linaro" | Op-tee Search vendor "Linaro" for product "Op-tee" | - | - |
Affected
| in | Nxp Search vendor "Nxp" | I.mx 6solox Search vendor "Nxp" for product "I.mx 6solox" | - | - |
Safe
|
| Linaro Search vendor "Linaro" | Op-tee Search vendor "Linaro" for product "Op-tee" | - | - |
Affected
| in | Nxp Search vendor "Nxp" | I.mx 6ull Search vendor "Nxp" for product "I.mx 6ull" | - | - |
Safe
|
| Linaro Search vendor "Linaro" | Op-tee Search vendor "Linaro" for product "Op-tee" | - | - |
Affected
| in | Nxp Search vendor "Nxp" | I.mx 6ulz Search vendor "Nxp" for product "I.mx 6ulz" | - | - |
Safe
|
| Linaro Search vendor "Linaro" | Op-tee Search vendor "Linaro" for product "Op-tee" | - | - |
Affected
| in | Nxp Search vendor "Nxp" | I.mx 7ds Search vendor "Nxp" for product "I.mx 7ds" | - | - |
Safe
|
| Linaro Search vendor "Linaro" | Op-tee Search vendor "Linaro" for product "Op-tee" | - | - |
Affected
| in | Nxp Search vendor "Nxp" | I.mx6sx Search vendor "Nxp" for product "I.mx6sx" | - | - |
Safe
|