CVE-2018-18558
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.
- Score
- CVSS 3.0 6.4 Medium
- Status
- Modified - cve@mitre.org
- Published
- 2019-05-13
- Last modified
- 2024-08-05
- Weaknesses
- CWE-20
Affected products
References
- https://github.com/espressif/esp-idf/releases
- https://www.espressif.com/en/news/Espressif_Product_Security_Advisory_Concerning_Secure_Boot_%28CVE-2018-18558%29
