Vulnerability · Published Sep 7, 2021 · Assigned by mitre
CVE-2021-28135
Medium 6.5
In plain English
A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities).
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)0.8%top 42.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
References
- https://github.com/espressif/esp-idf x_refsource_MISC
- https://github.com/espressif/esp32-bt-lib x_refsource_MISC
- https://www.espressif.com/en/products/socs/esp32 x_refsource_MISC
- https://dl.packetstormsecurity.net/papers/general/braktooth.pdf x_refsource_MISC