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, 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.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 3.3 LOW

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

3.3^/10

CVSS v2.0 : LOW

Vector : AV:A/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 6.5 / Impact : 2.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://www.telink-semi.com/ble	Vendor Advisory
https://asset-group.github.io/disclosures/sweyntooth/	Exploit Third Party Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:telink-semi:tlsr8258_ble_sdk:*:*:*:*:*:*:*:*

cpe:2.3:h:telink-semi:tlsr8258:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:a:telink-semi:tlsr8269_ble_sdk:*:*:*:*:*:*:*:*

cpe:2.3:h:telink-semi:tlsr8269:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:a:telink-semi:tlsr8253_ble_sdk:*:*:*:*:*:*:*:*

cpe:2.3:h:telink-semi:tlsr8253:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:a:telink-semi:tlsr8251_ble_sdk:*:*:*:*:*:*:*:*

cpe:2.3:h:telink-semi:tlsr8251:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND

cpe:2.3:a:telink-semi:tlsr8232_ble_sdk:*:*:*:*:*:*:*:*

cpe:2.3:h:telink-semi:tlsr8232:-:*:*:*:*:*:*:*

Information

Published : 2020-02-12 07:15

Updated : 2020-02-25 12:35

NVD link : CVE-2019-19196

Mitre link : CVE-2019-19196

JSON object : View

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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Products Affected

telink-semi

tlsr8258
tlsr8251
tlsr8251_ble_sdk
tlsr8232_ble_sdk
tlsr8269
tlsr8232
tlsr8253_ble_sdk
tlsr8269_ble_sdk
tlsr8253
tlsr8258_ble_sdk

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