CVE-2021-28136

Published September 7th, 2021

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CVSS v3

6.5

MEDIUM

CVSS v2

3.3

LOW

Affected

PROJECTS

Description

The Bluetooth Classic implementation in Espressif ESP-IDF 4.4 and earlier does not properly handle the reception of multiple LMP IO Capability Request packets during the pairing process, allowing attackers in radio range to trigger memory corruption (and consequently a crash) in ESP32 via a replayed (duplicated) LMP packet.

espressif/esp-idf

Espressif IoT Development Framework. Official development framework for Espressif SoCs.

GitHub

18.2K

espressif/esp32-bt-lib

ESP32 Bluetooth stack (below HCI layer) precompiled libraries

GitHub