CVE-2019-2181 Explained : Impact and Mitigation

Android kernel vulnerability allowing local privilege escalation.

Understanding CVE-2019-2181

A potential integer overflow in the binder_transaction function of binder.c within the Android kernel may result in an out of bounds write, leading to local privilege escalation without additional execution privileges.

What is CVE-2019-2181?

An integer overflow vulnerability in the Android kernel's binder_transaction function
Allows local escalation of privileges without requiring additional execution privileges
User interaction is necessary for successful exploitation

The Impact of CVE-2019-2181

Local attackers can exploit the vulnerability to gain elevated privileges on the affected system
Potential for unauthorized access to sensitive information and system control

Technical Details of CVE-2019-2181

Android kernel vulnerability details

Vulnerability Description

Integer overflow in binder_transaction function of binder.c
Results in an out of bounds write
Enables local privilege escalation without extra execution privileges

Affected Systems and Versions

Product: Android
Version: Android kernel

Exploitation Mechanism

Requires user interaction for successful exploitation
Attackers can leverage the vulnerability to gain elevated privileges

Mitigation and Prevention

Protecting systems from CVE-2019-2181

Immediate Steps to Take

Apply security patches provided by the vendor
Monitor for any unauthorized system changes or activities
Educate users on safe browsing practices and avoiding suspicious links

Long-Term Security Practices

Regularly update and patch systems to address known vulnerabilities
Implement least privilege access controls to limit potential damage
Conduct regular security audits and penetration testing

Patching and Updates

Check for and apply security updates from Android and other relevant vendors
Stay informed about security bulletins and advisories to address vulnerabilities promptly