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.
Does this matter?
Lower severity and a low EPSS score (0.88%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.88% probability · 57th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- cypress/psoc 4 ble
- Source
- cve@mitre.org
References
- https://asset-group.github.io/disclosures/sweyntooth/Third Party Advisory
- https://community.cypress.com/thread/53680Vendor Advisory
- https://www.cypress.com/products/ble-bluetoothVendor Advisory
- https://asset-group.github.io/disclosures/sweyntooth/Third Party Advisory
- https://community.cypress.com/thread/53680Vendor Advisory
- https://www.cypress.com/products/ble-bluetoothVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.