{"id":"DEBIAN-CVE-2021-36133","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.","modified":"2026-09-01T20:04:30.864318816Z","published":"2021-12-07T21:15:08.257Z","upstream":["CVE-2021-36133"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2021-36133"}],"affected":[{"package":{"name":"optee-os","ecosystem":"Debian:13","purl":"pkg:deb/debian/optee-os?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.10.0-1","4.10.0-2","4.5.0-2","4.7.0-1","4.8.0-1","4.9.0-1"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-36133.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"}]}