The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation on Telink Semiconductor BLE SDK versions before November 2019 for TLSR8x5x through 3.4.0, TLSR823x through 1.3.0, and TLSR826x through 3.3 devices installs a zero long term key (LTK) if an out-of-order link-layer encryption request is received during Secure Connections pairing. An attacker in radio range can have arbitrary read/write access to protected GATT service data, cause a device crash, or possibly control a device's function by establishing an encrypted session with the zero LTK.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-02-12T14:25:08

Updated: 2024-08-05T02:09:39.433Z

Reserved: 2019-11-21T00:00:00

Link: CVE-2019-19194

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2020-02-12T15:15:12.053

Modified: 2020-08-24T17:37:01.140

Link: CVE-2019-19194

cve-icon Redhat

No data.