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 different vulnerability that allows them to write this binary to flash memory.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-05-13T12:49:59

Updated: 2024-08-05T11:15:58.936Z

Reserved: 2018-10-22T00:00:00

Link: CVE-2018-18558

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-05-13T13:29:02.103

Modified: 2024-11-21T03:56:09.217

Link: CVE-2018-18558

cve-icon Redhat

No data.