Bluetooth Low Energy Stack Vulnerability in Cypress PSoC 4 Devices
CVE-2019-17061

6.5MEDIUM

Key Information:

Vendor

Cypress

Status
Psoc 4 Ble
Vendor
CVE Published:
10 February 2020

What is CVE-2019-17061?

The Bluetooth Low Energy (BLE) stack on Cypress PSoC 4 devices contains a vulnerability due to improper validation of the BLE Link Layer header. When a packet with a Link Layer ID (LLID) of zero is received, it allows for unexpected execution of memory contents. This can lead to various issues including deadlocks, erratic behavior in the BLE state machine, and potential buffer overflows when attackers exploit crafted BLE Link Layer frames within radio proximity.

References

https://www.cypress.com/products/ble-bluetooth
x_refsource_MISC
https://asset-group.github.io/disclosures/sweyntooth/
x_refsource_MISC
https://community.cypress.com/thread/53680
x_refsource_MISC

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2019-17061 : Bluetooth Low Energy Stack Vulnerability in Cypress PSoC 4 Devices