CVE-2021-28135

The Bluetooth Classic implementation in Espressif ESP-IDF 4.4 and earlier does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service (crash) in ESP32 by flooding the target device with LMP Feature Response data.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 46%
VendorProductVersion
espressifesp-idf
𝑥
≤ 4.4
𝑥
= Vulnerable software versions
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
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