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HIGH

The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation in Texas Instruments SimpleLink SIMPLELINK-CC2640R2-SDK through 2.2.3 allows the Diffie-Hellman check during the Secure Connection pairing to be skipped if the Link Layer encryption setup is performed earlier

Published Aug 31, 2020

Description

The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation in Texas Instruments SimpleLink SIMPLELINK-CC2640R2-SDK through 2.2.3 allows the Diffie-Hellman check during the Secure Connection pairing to be skipped if the Link Layer encryption setup is performed earlier. An attacker in radio range can achieve arbitrary read/write access to protected GATT service data, cause a denial of service, or possibly control a device's function by establishing an encrypted session with an unauthenticated Long Term Key (LTK).

Affected products

Remediation

No remediation recorded yet.

Weaknesses (1)

References (4)

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED
Assigner mitre
Published Aug 31, 2020
Updated Aug 4, 2024
Reserved May 26, 2020

CISA Vulnrichment

No data

NVD

Status Modified
Modified Jun 17, 2026

Red Hat

No data

ENISA EUVD

Assigner mitre
Published Aug 31, 2020
Updated Aug 4, 2024

GitHub

No data