CVE-2019-1997 : Vulnerability Insights and Analysis

Android devices running specific versions are vulnerable to a potential information disclosure issue due to a randomness degradation in the random_get_bytes function.

Understanding CVE-2019-1997

This CVE identifies a vulnerability in Android versions 7.0, 7.1.1, 7.1.2, 8.0, 8.1, and 9 that could lead to the disclosure of local information through insecure wireless connections.

What is CVE-2019-1997?

The vulnerability in the random_get_bytes function in random.c may compromise randomness, potentially exposing local information via insecure wireless connections without requiring additional execution privileges.

The Impact of CVE-2019-1997

The vulnerability poses a risk of information disclosure without the need for user interaction, affecting the confidentiality of data transmitted over insecure wireless connections.

Technical Details of CVE-2019-1997

Android devices running specific versions are susceptible to this vulnerability.

Vulnerability Description

The issue stems from a degradation of randomness in the random_get_bytes function, allowing potential disclosure of local information over insecure wireless connections.

Affected Systems and Versions

Product: Android
Versions: 7.0, 7.1.1, 7.1.2, 8.0, 8.1, 9

Exploitation Mechanism

The vulnerability can be exploited without the need for additional execution privileges or user interaction.

Mitigation and Prevention

Steps to address and prevent exploitation of CVE-2019-1997.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Avoid connecting to insecure wireless networks.
Monitor for any suspicious activities on the device.

Long-Term Security Practices

Regularly update the device's operating system and applications.
Implement strong encryption for wireless connections.

Patching and Updates

Stay informed about security bulletins and updates from the Android platform.