CVE-2019-13916
Cypress WICED BLE Heap Overflow Heap Corruption Vulnerability
Description
An issue was discovered in Cypress (formerly Broadcom) WICED Studio 6.2 CYW20735B1 and CYW20819A1. As a Bluetooth Low Energy (BLE) packet is received, it is copied into a Heap (ThreadX Block) buffer. The buffer allocated in dhmulp_getRxBuffer is four bytes too small to hold the maximum of 255 bytes plus headers. It is possible to corrupt a pointer in the linked list holding the free buffers of the g_mm_BLEDeviceToHostPool Block pool. This pointer can be fully controlled by overflowing with 3 bytes of packet data and the first byte of the packet CRC checksum. The checksum can be freely chosen by adapting the packet data accordingly. An attacker might be able to allocate the overwritten address as a receive buffer resulting in a write-what-where condition. This is fixed in BT SDK2.4 and BT SDK2.45.
INFO
Published Date :
April 13, 2020, 5:15 p.m.
Last Modified :
April 22, 2020, 5:45 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2019-13916 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-13916.
| URL | Resource |
|---|---|
| https://community.cypress.com/thread/53681 | Permissions Required Vendor Advisory |
| https://github.com/seemoo-lab/frankenstein/blob/master/doc/CVE_2019_13916.md | Exploit Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Broadcom and Cypress firmware emulation for fuzzing and further full-stack debugging
bluetooth qemu cypress broadcom threadx arm heap
Python JavaScript CSS HTML Makefile C Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-13916 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-13916 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Apr. 22, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://community.cypress.com/thread/53681 No Types Assigned https://community.cypress.com/thread/53681 Permissions Required, Vendor Advisory Changed Reference Type https://github.com/seemoo-lab/frankenstein/blob/master/doc/CVE_2019_13916.md No Types Assigned https://github.com/seemoo-lab/frankenstein/blob/master/doc/CVE_2019_13916.md Exploit, Third Party Advisory Added CWE NIST CWE-787 Added CPE Configuration AND OR *cpe:2.3:a:cypress:wiced_studio:6.2:*:*:*:*:*:*:* OR cpe:2.3:h:cypress:cyw20735b1:-:*:*:*:*:*:*:* cpe:2.3:h:cypress:cyw20819a1:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-13916 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-13916
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} 0.01%
score
0.46379
percentile