CVE-2017-0403 : Security Advisory and Response

A vulnerability has been identified in the kernel performance subsystem of the Android operating system that could allow a locally installed malicious application to execute code within the kernel's context. This CVE was published on January 12, 2017.

Understanding CVE-2017-0403

This CVE affects Android versions Kernel-3.10 and Kernel-3.18, with a severity classification of High due to the potential for privilege escalation.

What is CVE-2017-0403?

CVE-2017-0403 is an elevation of privilege vulnerability in the Android kernel performance subsystem. It requires compromising a privileged process to exploit, enabling a local malicious application to execute arbitrary code within the kernel's context.

The Impact of CVE-2017-0403

The vulnerability poses a significant risk as it allows attackers to gain elevated privileges on the affected system, potentially leading to further compromise and control.

Technical Details of CVE-2017-0403

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The vulnerability in the kernel performance subsystem of Android could be exploited by a locally installed malicious application to execute code within the kernel's context.

Affected Systems and Versions

Affected Product: Android
Affected Versions: Kernel-3.10, Kernel-3.18

Exploitation Mechanism

To exploit this vulnerability, an attacker would first need to compromise a privileged process on the target system, allowing them to execute arbitrary code within the kernel's context.

Mitigation and Prevention

Protecting systems from CVE-2017-0403 requires immediate action and long-term security practices.

Immediate Steps to Take

Apply security patches provided by Google for the affected Android versions promptly.
Regularly update the Android operating system to mitigate known vulnerabilities.

Long-Term Security Practices

Implement strict application control policies to prevent the installation of untrusted apps.
Regularly monitor and audit system processes for any unusual activities that could indicate a compromise.

Patching and Updates

Regularly check for security bulletins and updates from Google to address vulnerabilities like CVE-2017-0403 and ensure the timely application of patches.