CVE-2019-2179 : Exploit Details and Defense Strategies

Android versions 7.1.1, 7.1.2, 8.0, 8.1, and 9 are affected by a vulnerability in the NDEF_MsgValidate function of the ndef_utils module, potentially leading to information disclosure.

Understanding CVE-2019-2179

This CVE identifies a vulnerability in specific versions of Android that could allow an attacker to disclose local information without requiring additional execution privileges.

What is CVE-2019-2179?

The vulnerability in the NDEF_MsgValidate function of the ndef_utils module in Android versions 7.1.1, 7.1.2, 8.0, 8.1, and 9 could result in an out-of-bounds read due to an integer overflow. Exploiting this vulnerability may lead to the disclosure of local information, contingent upon user interaction.

The Impact of CVE-2019-2179

The vulnerability could allow an attacker to access local information without needing additional execution privileges.
Successful exploitation may result in the disclosure of sensitive data.

Technical Details of CVE-2019-2179

The technical details of the CVE-2019-2179 vulnerability are as follows:

Vulnerability Description

The vulnerability arises from an integer overflow in the NDEF_MsgValidate function of the ndef_utils module.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability can be exploited through an out-of-bounds read, triggered by the integer overflow, requiring user interaction for successful exploitation.

Mitigation and Prevention

To address CVE-2019-2179, consider the following mitigation strategies:

Immediate Steps to Take

Apply security patches provided by the vendor.
Educate users about potential phishing attempts that could exploit this vulnerability.

Long-Term Security Practices

Regularly update the Android operating system to the latest version.
Implement security best practices to prevent unauthorized access to sensitive information.

Patching and Updates

Stay informed about security bulletins and updates from Android to address known vulnerabilities.