CVE-2019-20784 : Exploit Details and Defense Strategies

A problem was identified in the software of LG mobile devices running Android OS versions 7.0, 7.1, 7.2, 8.0, and 8.1 (specifically those with MTK chipsets). It pertains to the incorrect handling of GPS functionality during 911 emergency calls. This issue corresponds to the LG ID LVE-SMP-180012, which was reported in January 2019.

Understanding CVE-2019-20784

This CVE involves a vulnerability in LG mobile devices that affects the handling of GPS functionality during 911 emergency calls.

What is CVE-2019-20784?

CVE-2019-20784 is a vulnerability found in LG mobile devices with Android OS versions 7.0, 7.1, 7.2, 8.0, and 8.1, specifically those equipped with MTK chipsets. It results in the mishandling of GPS functionality during 911 emergency calls.

The Impact of CVE-2019-20784

The vulnerability could potentially lead to incorrect GPS data being transmitted during emergency calls, impacting the ability to accurately locate the caller in critical situations.

Technical Details of CVE-2019-20784

This section provides more technical insights into the vulnerability.

Vulnerability Description

The issue arises from the improper interaction between GPS functionality and 911 emergency calls on LG mobile devices with the specified Android OS versions and MTK chipsets.

Affected Systems and Versions

LG mobile devices running Android OS versions 7.0, 7.1, 7.2, 8.0, and 8.1 with MTK chipsets

Exploitation Mechanism

The vulnerability occurs due to the incorrect handling of GPS data during 911 emergency calls, potentially leading to inaccurate location information.

Mitigation and Prevention

To address CVE-2019-20784, follow these mitigation steps:

Immediate Steps to Take

Update the affected LG devices to the latest software version provided by the manufacturer.
Regularly check for security updates from LG to ensure the device is protected against known vulnerabilities.

Long-Term Security Practices

Enable automatic software updates on the device to receive timely security patches.
Exercise caution while using GPS functionalities, especially during emergency calls, to mitigate potential risks.

Patching and Updates

Apply patches and updates released by LG promptly to address the vulnerability and enhance the security of the device.