Input validation error in Xiaomi products - CVE-2021-28155
Published: September 6, 2021 / Updated: September 6, 2021
Vulnerability identifier: #VU56312
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-28155
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Espressif Systems
Harman International Industries
Xiaomi
Harman International Industries
Xiaomi
Affected software:
ESP-IDF
ESP-WROVER-KIT
JBL TUNE500BT
MDZ-36-DB
ESP32
ESP-IDF
ESP-WROVER-KIT
JBL TUNE500BT
MDZ-36-DB
ESP32
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the Bluetooth Classic implementation does not properly handle the reception of continuous unsolicited LMP responses. A remote attacker in radio range can send LMP Feature Response data and perform a denial of service (DoS) attack.
How to mitigate CVE-2021-28155
Install update from vendor's website.