CVE-2019-2187 : Vulnerability Insights and Analysis

A potential vulnerability has been identified in the nfc_ncif_decode_rf_params function of the nfc_ncif.cc file in Android versions 7.1.1, 7.1.2, 8.0, 8.1, 9, and 10. This vulnerability could lead to an out-of-bounds read due to an integer underflow, potentially exposing local information without additional execution privileges.

Understanding CVE-2019-2187

This CVE affects Android versions 7.1.1, 7.1.2, 8.0, 8.1, 9, and 10, and is classified as an information disclosure vulnerability.

What is CVE-2019-2187?

The vulnerability in the nfc_ncif_decode_rf_params function of the nfc_ncif.cc file in Android versions 7.1.1, 7.1.2, 8.0, 8.1, 9, and 10 could result in an out-of-bounds read due to an integer underflow, potentially exposing local information without additional execution privileges.

The Impact of CVE-2019-2187

If exploited, this vulnerability could allow an attacker to access local information without requiring any additional execution privileges, potentially compromising user data.

Technical Details of CVE-2019-2187

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability arises from an integer underflow in the nfc_ncif_decode_rf_params function, leading to an out-of-bounds read.

Affected Systems and Versions

Android 7.1.1
Android 7.1.2
Android 8.0
Android 8.1
Android 9
Android 10

Exploitation Mechanism

The vulnerability can be exploited to access local information without the need for additional execution privileges.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Monitor official sources for updates and security advisories.

Long-Term Security Practices

Regularly update and patch all software and systems.
Implement network segmentation and access controls to limit exposure.

Patching and Updates

Regularly check for security bulletins and updates from Android.
Apply patches and updates as soon as they are released to mitigate the risk of exploitation.