CVE-2019-2133 : Security Advisory and Response

Android devices are susceptible to a heap buffer overflow vulnerability in the Mfc_Transceive function, potentially leading to local privilege escalation. This CVE affects multiple Android versions.

Understanding CVE-2019-2133

This CVE identifies a specific vulnerability in Android devices that could be exploited for local privilege escalation.

What is CVE-2019-2133?

The vulnerability involves an out-of-bounds write in the Mfc_Transceive function of the phNxpExtns_MifareStd.cpp file on Android devices. Successful exploitation could allow an attacker to escalate privileges locally without needing additional execution privileges. User interaction is required for the exploit to be successful.

The Impact of CVE-2019-2133

The impact of this vulnerability is the potential for unauthorized users to gain elevated privileges on affected Android devices, compromising their security and data.

Technical Details of CVE-2019-2133

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability is a heap buffer overflow issue in the Mfc_Transceive function, leading to an out-of-bounds write in the phNxpExtns_MifareStd.cpp file on Android devices.

Affected Systems and Versions

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

Exploitation Mechanism

Exploiting the vulnerability requires user interaction on the affected Android devices.

Mitigation and Prevention

Protecting systems from CVE-2019-2133 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by the device manufacturer promptly.
Avoid interacting with untrusted sources or unknown links to mitigate exploitation risks.

Long-Term Security Practices

Regularly update the device's operating system and applications to address security vulnerabilities.
Implement strong access controls and user permissions to limit the impact of potential exploits.
Educate users on safe browsing habits and the importance of security updates.

Patching and Updates

Stay informed about security bulletins and updates from Android to apply relevant patches and fixes promptly.