CVE-2021-36133

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.

CVSS v3 7.1 HIGH
CVSS v2.0 3.6 LOW

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

3.6^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:N

Exploitability : 3.9 / Impact : 4.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2021-0001-OP-TEE_TrustZone_bypass.txt	Third Party Advisory
https://github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2021-0001-OP-TEE_TrustZone_bypass.txt	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:linaro:op-tee:-:*:*:*:*:*:*:*

OR	cpe:2.3:h:nxp:i.mx_6:-:::::::*
	cpe:2.3:h:nxp:i.mx_6solox:-:::::::*
	cpe:2.3:h:nxp:i.mx_6ull:-:::::::*
	cpe:2.3:h:nxp:i.mx_6ulz:-:::::::*
	cpe:2.3:h:nxp:i.mx_7ds:-:::::::*
	cpe:2.3:h:nxp:i.mx6sx:-:::::::*

History

21 Nov 2024, 06:13

Type	Values Removed	Values Added
References	~~() https://github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2021-0001-OP-TEE_TrustZone_bypass.txt - Third Party Advisory~~	() https://github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2021-0001-OP-TEE_TrustZone_bypass.txt - Third Party Advisory

Information

Published : 2021-12-07 21:15

Updated : 2024-11-21 06:13

NVD link : CVE-2021-36133

Mitre link : CVE-2021-36133

CVE.ORG link : CVE-2021-36133

JSON object : View

Products Affected

nxp

i.mx_6ulz
i.mx_6ull
i.mx_6
i.mx6sx
i.mx_7ds
i.mx_6solox

linaro

op-tee

CWE

CWE-732

Incorrect Permission Assignment for Critical Resource

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