Trustedfirmware · Op-Tee · CVE-2022-47549
**Name of the Vulnerable Software and Affected Versions**
TrustedFirmware Open Portable Trusted Execution Environment (OP-TEE) versions prior to 3.20
**Description**
The issue is related to an unprotected memory-access operation in optee os, allowing a physically proximate adversary to bypass signature verification. This can lead to the installation of malicious trusted applications via electromagnetic fault injections.
**Recommendations**
For versions prior to 3.20, update to version 3.20 or later to resolve the issue. As a temporary workaround, consider implementing additional security measures to prevent electromagnetic fault injections, such as using a Faraday cage or other shielding methods to protect the device. Restrict physical access to the device to minimize the risk of exploitation.