CVE-2021-43619
https://notcve.org/view.php?id=CVE-2021-43619
Trusted Firmware M 1.4.x through 1.4.1 has a buffer overflow issue in the Firmware Update partition. In the IPC model, a psa_fwu_write caller from SPE or NSPE can overwrite stack memory locations. Trusted Firmware M versiones 1.4.x hasta 1.4.1, presenta un problema de desbordamiento de búfer en la partición de actualización de firmware. En el modelo IPC, un llamador psa_fwu_write desde SPE o NSPE puede sobrescribir ubicaciones de memoria de la pila. • https://developer.arm.com/support/arm-security-updates https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/fwu_write_vulnerability.html https://www.trustedfirmware.org • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVE-2021-40327
https://notcve.org/view.php?id=CVE-2021-40327
Trusted Firmware-M (TF-M) 1.4.0, when Profile Small is used, has incorrect access control. NSPE can access a secure key (held by the Crypto service) based solely on knowledge of its key ID. For example, there is no authorization check associated with the relationship between a caller and a key owner. Trusted Firmware-M (TF-M) versión 1.4.0, cuando es usado el perfil Small, presenta un control de acceso incorrecto. NSPE puede acceder a una clave segura (mantenida por el servicio Crypto) basándose únicamente en el conocimiento de su ID de clave. • https://developer.arm.com/support/arm-security-updates https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.html • CWE-862: Missing Authorization •