CVE-2021-42553 – STM32 USB Host Library Buffer Overflow

https://notcve.org/view.php?id=CVE-2021-42553

A buffer overflow vulnerability in stm32_mw_usb_host of STMicroelectronics in versions before 3.5.1 allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBH_MAX_NUM_ENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs. Una vulnerabilidad de desbordamiento de búfer en la función stm32_mw_usb_host de STMicroelectronics permite a un atacante ejecutar código arbitrario cuando el descriptor contiene más endpoints que USBH_MAX_NUM_ENDPOINTS. La librería es integrada normalmente cuando es usado un RTOS como FreeRTOS en los MCUs STM32 • https://github.com/STMicroelectronics/stm32_mw_usb_host https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •