CVE-2021-0395 : What You Need to Know

This CVE-2021-0395 article provides an in-depth analysis of a vulnerability impacting Android-11 that could potentially lead to local privilege escalation without the need for user interaction.

Understanding CVE-2021-0395

This section delves into the specifics of the CVE-2021-0395 vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2021-0395?

CVE-2021-0395 relates to a memory corruption issue within the StopServicesAndLogViolations function in reboot.cpp in Android-11. The vulnerability stems from a use after free scenario, allowing for potential local privilege escalation without requiring additional execution privileges or user interaction.

The Impact of CVE-2021-0395

The exploitation of CVE-2021-0395 could result in local privilege escalation on Android devices running version Android-11. Attackers could leverage this vulnerability to gain elevated privileges without the user's consent or awareness.

Technical Details of CVE-2021-0395

In this section, we explore the vulnerability description, affected systems and versions, as well as the exploitation mechanism related to CVE-2021-0395.

Vulnerability Description

The vulnerability in StopServicesAndLogViolations in reboot.cpp introduces the possibility of memory corruption due to a use after free scenario, enabling potential local privilege escalation by malicious actors.

Affected Systems and Versions

The vulnerability impacts devices running Android-11, making them susceptible to the exploitation path that could lead to local privilege escalation without the need for additional user privileges.

Exploitation Mechanism

To exploit CVE-2021-0395, attackers can take advantage of the memory corruption vulnerability present in the StopServicesAndLogViolations function in reboot.cpp on Android-11 devices, bypassing the need for user interaction.

Mitigation and Prevention

This section outlines immediate steps to take, long-term security practices, and the importance of timely patching and updates to address CVE-2021-0395.

Immediate Steps to Take

It is crucial for Android-11 users to apply security patches promptly to mitigate the risk of local privilege escalation through CVE-2021-0395. Additionally, monitoring for any suspicious activity is recommended.

Long-Term Security Practices

In the long run, ensuring robust security measures, such as regular security audits, adherence to best coding practices, and ongoing threat assessments, can help prevent similar vulnerabilities in the future.

Patching and Updates

Google Android's security bulletin released on March 1, 2021, provides the necessary patches to address CVE-2021-0395. Users are advised to update their devices with the latest security fixes without delay.