Medium · 6.4 CVE-2022-47549 EUVD-2022-50310GHSA-fpxc-4rrx-f672

An unprotected memory-access operation in optee_os in TrustedFirmware Open Portable Trusted Execution Environment (OP-TEE) before 3.20 allo…

Published Dec 19, 2022 · Updated Apr 17, 2025 · Assigned by mitre

Description

An unprotected memory-access operation in optee_os in TrustedFirmware Open Portable Trusted Execution Environment (OP-TEE) before 3.20 allows a physically proximate adversary to bypass signature verification and install malicious trusted applications via electromagnetic fault injections.

References

https://github.com/OP-TEE/optee_os/security/advisories/GHSA-r64m-h886-hw6g
https://people.linaro.org/~joakim.bech/reports/Breaking_cross-world_isolation_on_ARM_TrustZone_through_EM_faults_coredumps_and_UUID_confusion.pdf