Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-36133

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
07/12/2021
Last modified:
09/12/2021

Description

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.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.10 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): None

Base Score 3.x
7.10
Severity 3.x
HIGH
Vector 2.0
AV:L/AC:L/Au:N/C:P/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 3.60 LOW
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): None

Base Score 2.0
3.60
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linaro:op-tee:-:*:*:*:*:*:*:*
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:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools