#VU56312 Input validation error in Xiaomi Hardware solutions


Published: 2021-09-06 | Updated: 2021-09-06

Vulnerability identifier: #VU56312

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-28155

CWE-ID: CWE-20

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
ESP-IDF
Server applications / Other server solutions
ESP-WROVER-KIT
Hardware solutions / Routers & switches, VoIP, GSM, etc
JBL TUNE500BT
Hardware solutions / Other hardware appliances
MDZ-36-DB
Hardware solutions / Other hardware appliances
ESP32
Hardware solutions / Firmware

Vendor: Espressif Systems
Harman International Industries
Xiaomi

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.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ESP-IDF: 0.9 - 4.4

ESP-WROVER-KIT: All versions

JBL TUNE500BT: All versions

MDZ-36-DB: All versions


External links
http://asset-group.github.io/disclosures/braktooth/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability