CVE-2026-42805: Bosch Sensortec BHI385 SensorAPI (C Library), грешка в

Описание

Оригинално описание

A stack-based buffer overflow vulnerability exists in the Bosch Sensortec BHI385 SensorAPI (C library) within the debug message parser function bhi385_parse_debug_message (located in bhi385_parse.c). The function parses FIFO events and extracts an 8-bit message length directly from the attacker-controlled event payload (callback_info->data_ptr[0]) without enforcing bounds checks or clamping the value. When copying the payload into a fixed-size stack buffer of 17 bytes (uint8_t debug_msg[17]) via memcpy, providing a length byte greater than 16 causes the function to write past the allocated stack boundary. This memory corruption can be triggered by a malicious or compromised sensor or bus participant, leading to a firmware crash, Denial of Service (DoS), or potentially the execution of arbitrary code via adjacent stack data corruption.

Засегнати продукти

• Bosch Sensortec BHI385 SensorAPI (C Library): 1.1.0 до 2.1.0

Вид слабост

• CWE-121 Препълване на буфера в стека

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-42805
• https://nvd.nist.gov/vuln/detail/CVE-2026-42805
• https://psirt.bosch.com/security-advisories/BOSCH-SA-223618.html