CVE-2021-36133
7.1 HIGHThe OPTEE-OS CSU driver for NXP i.MX SoC devices lacks security access configuration for several models, resulting in TrustZone bypass be...
Published: 2021-12-07 · Last updated: 2026-06-05
Severity and scoring
- CVSS
- 7.1 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- CWE
- CWE-732
Affected products
| Vendor | Product |
|---|---|
| trustedfirmware | op-tee |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-36133
- [Other]https://github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2021-0001-OP-TEE_TrustZone_bypass.txt
- [Other]https://github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2021-0001-OP-TEE_TrustZone_bypass.txt
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