CVE-2021-28136

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.

Score

CVSS 3.1 6.5 Medium

Status

Modified - cve@mitre.org

Published

2021-09-07

Last modified

2024-08-03

Weaknesses

CWE-787

Affected products

• Esp-idf (Espressif)

References

• https://dl.packetstormsecurity.net/papers/general/braktooth.pdf
• https://github.com/espressif/esp-idf
• https://github.com/espressif/esp32-bt-lib
• https://www.espressif.com/en/products/socs/esp32