CVE-2018-18558

https://notcve.org/view.php?id=CVE-2018-18558

13 May 2019 — An issue was discovered in Espressif ESP-IDF 2.x and 3.x before 3.0.6 and 3.1.x before 3.1.1. Insufficient validation of input data in the 2nd stage bootloader allows a physically proximate attacker to bypass secure boot checks and execute arbitrary code, by crafting an application binary that overwrites a bootloader code segment in process_segment in components/bootloader_support/src/esp_image_format.c. The attack is effective when the flash encryption feature is not enabled, or if the attacker finds a dif... • https://github.com/espressif/esp-idf/releases • CWE-20: Improper Input Validation •