Vulnerability Monitor

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CVE-2019-17061

The Bluetooth Low Energy (BLE) stack implementation on Cypress PSoC 4 through 3.62 devices does not properly restrict the BLE Link Layer header and executes certain memory contents upon receiving a packet with a Link Layer ID (LLID) equal to zero. This allows attackers within radio range to cause deadlocks, cause anomalous behavior in the BLE state machine, or trigger a buffer overflow via a crafted BLE Link Layer frame.

Published

2020-02-10T21:51:09.373

Last Modified

2024-11-21T04:31:37.627

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

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

Access Vector: ADJACENT_NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

6.5

Impact Score

6.9

Weaknesses

Type: Primary
CWE-120

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	cypress	psoc_4_ble	≤ 3.62	Yes
Hardware	cypress	psoc_4	-	No

References

https://asset-group.github.io/disclosures/sweyntooth/ Third Party Advisory ([email protected])
https://community.cypress.com/thread/53680 Vendor Advisory ([email protected])
https://www.cypress.com/products/ble-bluetooth Vendor Advisory ([email protected])
https://asset-group.github.io/disclosures/sweyntooth/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://community.cypress.com/thread/53680 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.cypress.com/products/ble-bluetooth Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)