Buffer overflow in Espressif Systems products - CVE-2021-28136
Published: September 6, 2021 / Updated: September 6, 2021
Vulnerability identifier: #VU56310
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-2021-28136
CWE-ID: CWE-119
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Espressif Systems
Affected software:
ESP-WROVER-KIT
ESP-IDF
ESP32
ESP-WROVER-KIT
ESP-IDF
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 multiple LMP_IO_Capability_req packets during the pairing process. A remote attacker in radio range can send a specially crafted LMP packet, trigger memory corruption and cause a denial of service condition on the target system.
How to mitigate CVE-2021-28136
Install update from vendor's website.