CVE-2021-0970 : What You Need to Know

Android devices are affected by CVE-2021-0970, which could allow an attacker to locally escalate privileges without needing additional execution privileges. This vulnerability exists in GpsNavigationMessage.java, where a Parcel serialization/deserialization mismatch could be exploited. User interaction is not required for exploitation.

Understanding CVE-2021-0970

This section will cover the details of CVE-2021-0970, including its impact, technical description, affected systems, and mitigation steps.

What is CVE-2021-0970?

CVE-2021-0970 involves a vulnerability in createFromParcel of GpsNavigationMessage.java, potentially leading to local privilege escalation on Android devices without the need for user interaction.

The Impact of CVE-2021-0970

The impact of this CVE is the ability for an attacker to locally escalate privileges on affected Android devices, posing a significant security risk.

Technical Details of CVE-2021-0970

Let's delve deeper into the technical aspects of CVE-2021-0970 to understand the vulnerability further.

Vulnerability Description

The vulnerability lies in a possible Parcel serialization/deserialization mismatch in createFromParcel of GpsNavigationMessage.java, enabling a local privilege escalation threat.

Affected Systems and Versions

The affected systems include Android versions 9, 10, 11, and 12. Devices running these versions are susceptible to the privilege escalation issue.

Exploitation Mechanism

The exploitation does not require user interaction, making it easier for threat actors to potentially escalate privileges locally.

Mitigation and Prevention

To address CVE-2021-0970, immediate steps should be taken along with long-term security practices to safeguard Android devices.

Immediate Steps to Take

Users and administrators should apply security patches promptly to mitigate the risk posed by CVE-2021-0970. Additionally, monitoring for any signs of exploitation is crucial.

Long-Term Security Practices

Implementing robust security protocols, regular security updates, and security awareness training can help prevent and mitigate such vulnerabilities in the future.

Patching and Updates

Regularly check for security updates from Android's security bulletin and apply them as soon as they are available to protect devices from known vulnerabilities.