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medium6.5

CVE-2019-19196

The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation on Telink Semiconductor BLE SDK versions before November 2019 for TLSR8x5x through 3.4.0,…

Impact

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 accepts a pairing request with a key size greater than 16 bytes, allowing an attacker in radio range to cause a buffer overflow and denial of service (crash) via crafted packets.

Affected products

VendorProductAffected versions
Telink-SemiTlsr8258 Ble Sdk
through 3.4.0
Telink-SemiTlsr8269 Ble Sdk
through 3.3
Telink-SemiTlsr8253 Ble Sdk
through 3.4.0
Telink-SemiTlsr8251 Ble Sdk
through 3.4.0
Telink-SemiTlsr8232 Ble Sdk
through 1.3.0

Weakness classification

References