PT-2020-9413 · Cypress · Cypress Wiced Studio

Jan · Published 2020-04-13 · Updated 2020-04-22 · CVE-2019-13916

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Cypress WICED Studio version 6.2

Description: An issue was discovered in Cypress WICED Studio where a Bluetooth Low Energy (BLE) packet is copied into a Heap buffer. The buffer allocated is four bytes too small to hold the maximum packet size, allowing an attacker to corrupt a pointer in the linked list holding free buffers. This pointer can be controlled by overflowing with packet data and the packet CRC checksum, potentially resulting in a write-what-where condition.

Recommendations: For Cypress WICED Studio version 6.2, update to BT SDK2.4 or BT SDK2.45 to resolve the issue. As a temporary workaround, consider restricting the reception of BLE packets to minimize the risk of exploitation.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2019-13916

Affected Products

Cypress Wiced Studio

References · 5

• 🔥 https://github.com/seemoo-lab/frankenstein/blob/master/doc/CVE_2019_13916.md · Exploit
• https://osv.dev/vulnerability/CVE-2019-13916 · Vendor Advisory
• https://community.cypress.com/thread/53681 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-13916 · Security Note
• https://t.me/cvenotify/2677 · Telegram Post