CVE-2021-31609
Silicon Labs iWRAP Bluetooth Classic Buffer Overflow Crash
Description
The Bluetooth Classic implementation in Silicon Labs iWRAP 6.3.0 and earlier does not properly handle the reception of an oversized LMP packet greater than 17 bytes, allowing attackers in radio range to trigger a crash in WT32i via a crafted LMP packet.
INFO
Published Date :
Sept. 7, 2021, 7:15 a.m.
Last Modified :
Sept. 20, 2021, 12:04 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2021-31609 has a 3 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-2021-31609.
| URL | Resource |
|---|---|
| https://dl.packetstormsecurity.net/papers/general/braktooth.pdf | Technical Description Third Party Advisory |
| https://www.silabs.com/wireless/bluetooth/bluegiga-classic-legacy-modules/device.wt32i-a | Product Vendor 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).
None
A Series of Baseband & LMP Exploits against Bluetooth Classic Controllers
List of Bluetooth BR/EDR/LE security resources
bluetooth bluetooth-low-energy bluetooth-security pentesting penetration-testing security awesome awesome-list ble bluetooth-hacking
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-31609 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-31609 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 -
Reanalysis by [email protected]
Sep. 20, 2021
Action Type Old Value New Value Changed CPE Configuration AND OR *cpe:2.3:o:silabs:iwrap:*:*:*:*:*:*:*:* versions up to (including) 6.3.0 OR cpe:2.3:h:silabs:wt32i-a:-:*:*:*:*:*:*:* AND OR *cpe:2.3:a:silabs:iwrap:*:*:*:*:*:*:*:* versions up to (including) 6.3.0 OR cpe:2.3:h:silabs:wt32i-a:-:*:*:*:*:*:*:* -
Initial Analysis by [email protected]
Sep. 13, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://dl.packetstormsecurity.net/papers/general/braktooth.pdf No Types Assigned https://dl.packetstormsecurity.net/papers/general/braktooth.pdf Technical Description, Third Party Advisory Changed Reference Type https://www.silabs.com/wireless/bluetooth/bluegiga-classic-legacy-modules/device.wt32i-a No Types Assigned https://www.silabs.com/wireless/bluetooth/bluegiga-classic-legacy-modules/device.wt32i-a Product, Vendor Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration AND OR *cpe:2.3:o:silabs:iwrap:*:*:*:*:*:*:*:* versions up to (including) 6.3.0 OR cpe:2.3:h:silabs:wt32i-a:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-31609 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-2021-31609
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} 0.01%
score
0.28750
percentile