6.5
MEDIUM
CVE-2019-19196
Telink Semiconductor Bluetooth Low Energy Secure Manager Protocol (SMP) Buffer Overflow Denial of Service Vulnerability
Description

The Bluetooth Low Energy Secure Manager Protocol (SMP) implementation on Telink Semiconductor BLE SDK versions before November 2019 for TLSR8x5x through 3.4.0, TLSR823x through 1.3.0, and TLSR826x through 3.3 devices accepts a pairing request with a key size greater than 16 bytes, allowing an attacker in radio range to cause a buffer overflow and denial of service (crash) via crafted packets.

INFO

Published Date :

Feb. 12, 2020, 3:15 p.m.

Last Modified :

Feb. 25, 2020, 8:35 p.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2019-19196 has a 4 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2019-19196 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Telink-semi tlsr8258_ble_sdk
2 Telink-semi tlsr8269_ble_sdk
3 Telink-semi tlsr8253_ble_sdk
4 Telink-semi tlsr8251_ble_sdk
5 Telink-semi tlsr8232_ble_sdk
: Total Affected Vendor : 1 | Products : 5
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-2019-19196.

URL Resource
http://www.telink-semi.com/ble Vendor Advisory
https://asset-group.github.io/disclosures/sweyntooth/ 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).

Profile Photo
asset-group/vakt-ble-defender

VaktBLE: Friendly Bluetooth Low Energy MitM that block over-the-air attacks in real-time.

ble bluetooth-low-energy injectable jamming mitm ble-defense blediff sweyntooth vaktble

Python Shell Makefile C Batchfile C++ Tcl Mask GLSL C#

Updated: 6 days, 16 hours ago
2 stars 0 fork 0 watcher
Born at : Oct. 21, 2024, 6:03 a.m. This repo has been linked 19 different CVEs too.
Profile Photo
JeffroMF/awesome-bluetooth-security321

None

Updated: 2 years, 7 months ago
0 stars 0 fork 0 watcher
Born at : April 5, 2022, 9:49 p.m. This repo has been linked 64 different CVEs too.
Profile Photo
engn33r/awesome-bluetooth-security

List of Bluetooth BR/EDR/LE security resources

bluetooth bluetooth-low-energy bluetooth-security pentesting penetration-testing security awesome awesome-list ble bluetooth-hacking

Updated: 2 months, 2 weeks ago
499 stars 45 fork 45 watcher
Born at : June 21, 2020, 6:27 p.m. This repo has been linked 68 different CVEs too.
Profile Photo
Matheus-Garbelini/sweyntooth_bluetooth_low_energy_attacks

Proof of Concept of Sweyntooth Bluetooth Low Energy (BLE) vulnerabilities.

Python Shell Batchfile C++ Makefile C Dockerfile

Updated: 2 months, 3 weeks ago
269 stars 67 fork 67 watcher
Born at : Feb. 10, 2020, 2:21 p.m. This repo has been linked 17 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-19196 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-19196 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]

    Feb. 25, 2020

    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 http://www.telink-semi.com/ble No Types Assigned http://www.telink-semi.com/ble Vendor Advisory
    Changed Reference Type https://asset-group.github.io/disclosures/sweyntooth/ No Types Assigned https://asset-group.github.io/disclosures/sweyntooth/ Exploit, Third Party Advisory
    Added CWE NIST CWE-120
    Added CPE Configuration AND OR *cpe:2.3:a:telink-semi:tlsr8258_ble_sdk:*:*:*:*:*:*:*:* versions up to (including) 3.4.0 OR cpe:2.3:h:telink-semi:tlsr8258:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:telink-semi:tlsr8269_ble_sdk:*:*:*:*:*:*:*:* versions up to (including) 3.3 OR cpe:2.3:h:telink-semi:tlsr8269:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:telink-semi:tlsr8253_ble_sdk:*:*:*:*:*:*:*:* versions up to (including) 3.4.0 OR cpe:2.3:h:telink-semi:tlsr8253:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:telink-semi:tlsr8251_ble_sdk:*:*:*:*:*:*:*:* versions up to (including) 3.4.0 OR cpe:2.3:h:telink-semi:tlsr8251:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:telink-semi:tlsr8232_ble_sdk:*:*:*:*:*:*:*:* versions up to (including) 1.3.0 OR cpe:2.3:h:telink-semi:tlsr8232:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-19196 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-2019-19196 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-92: Forced Integer Overflow Forced Integer Overflow CAPEC-100: Overflow Buffers Overflow Buffers
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.09 }} 0.00%

score

0.36059

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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