CVE-2021-36133
7.1
HIGH
CVSS 3.1
EPSS 0.06%
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.
How to fix CVE-2021-36133
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- Debian/optee-os—no fix listed
Is CVE-2021-36133 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |