CVE-2019-20549 : Exploit Details and Defense Strategies

Samsung mobile devices using N(7.x), O(8.x), and P(9.0) versions with Broadcom chipsets are affected by a vulnerability that can lead to unauthorized memory access.

Understanding CVE-2019-20549

This CVE involves a heap out-of-bounds access issue in Broadcom Bluetooth on Samsung mobile devices.

What is CVE-2019-20549?

A vulnerability in Samsung mobile devices with specific software versions can result in unauthorized memory access during LE Packet reception in Broadcom Bluetooth.

The Impact of CVE-2019-20549

The vulnerability can potentially allow attackers to access memory beyond its intended boundaries, leading to security breaches and unauthorized data access.

Technical Details of CVE-2019-20549

Samsung mobile devices with Broadcom chipsets are susceptible to a heap out-of-bounds access issue in Broadcom Bluetooth.

Vulnerability Description

The vulnerability allows unauthorized access to memory beyond its bounds when receiving LE Packets in Broadcom Bluetooth on Samsung devices.

Affected Systems and Versions

Samsung mobile devices using N(7.x), O(8.x), and P(9.0) versions

Exploitation Mechanism

Attackers can exploit this vulnerability by sending malicious LE Packets to the affected Samsung devices, triggering unauthorized memory access.

Mitigation and Prevention

Steps to address and prevent the CVE-2019-20549 vulnerability.

Immediate Steps to Take

Apply security updates provided by Samsung promptly.
Avoid connecting to untrusted Bluetooth devices.
Monitor for any suspicious activities on the device.

Long-Term Security Practices

Regularly update the device's software and firmware.
Implement strong security measures such as encryption and authentication for Bluetooth connections.

Patching and Updates

Install the latest security patches and updates released by Samsung to mitigate the vulnerability.