UBUNTU-CVE-2021-36133

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Source
https://ubuntu.com/security/CVE-2021-36133
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36133.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-36133
Upstream
Published
2021-12-07T21:15:00Z
Modified
2026-04-22T12:56:37.686613Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:25.10 / optee-os

Package

Name
optee-os
Purl
pkg:deb/ubuntu/optee-os@4.7.0-1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*
4.5.0-1
4.5.0-2
4.7.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.7.0-1",
            "binary_name": "optee-os"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36133.json"