PT-2023-13032 · Cypress · Cypress Bluetooth Mesh Sdk

Published 2023-02-01 · Updated 2023-02-09 · CVE-2022-31363

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 Bluetooth Mesh SDK version BSA0107 05.01.00-BX8-AMESH-08

Description The issue is related to a buffer overflow that can allow the execution of arbitrary code remotely. It is caused by an out-of-bound write vulnerability during mesh provisioning due to a lack of check for mismatched SegN and TotalLength in Transaction Start PDU. The affected function is pb transport handle frag .

Recommendations For Cypress Bluetooth Mesh SDK version BSA0107 05.01.00-BX8-AMESH-08, as a temporary workaround, consider disabling the pb transport handle frag function until a patch is available. Restrict access to the mesh provisioning feature to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2022-31363

Affected Products

Cypress Bluetooth Mesh Sdk

References · 5

• 🔥 https://docs.google.com/document/d/1iSZze8Ig6HZVsrldmXw0bibZLGMMTU5w/edit · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-31363 · Security Note
• https://osv.dev/vulnerability/CVE-2022-31363 · Vendor Advisory
• https://t.me/cibsecurity/57363 · Telegram Post
• https://t.me/cvenotify/43380 · Telegram Post