medium6.4
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.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Espressif | Esp-Idf | from 2.0 before 3.0.6 from 3.1 through 3.1.1 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/espressif/esp-idf/releases
- https://www.espressif.com/en/news/Espressif_Product_Security_Advisory_Concerning_Secure_Boot_%28CVE-2018-18558%29
- https://github.com/espressif/esp-idf/releases
- https://www.espressif.com/en/news/Espressif_Product_Security_Advisory_Concerning_Secure_Boot_%28CVE-2018-18558%29