CVE-2021-0492 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2021-0492, a vulnerability found in Android's memory management driver that could lead to an elevation of privilege without the need for additional execution privileges. User interaction is not required for exploitation.

Understanding CVE-2021-0492

CVE-2021-0492 is a security vulnerability identified in Android's memory management driver that poses a risk of local escalation of privilege.

What is CVE-2021-0492?

The vulnerability in the memory management driver of Android could result in an out-of-bounds write due to the absence of a bounds check. This flaw enables an attacker to escalate privileges locally without requiring additional execution permissions, all without user interaction.

The Impact of CVE-2021-0492

The impact of this vulnerability is severe as it can allow threat actors to gain escalated privileges on the affected system, potentially leading to further exploit activities.

Technical Details of CVE-2021-0492

This section delves into the specifics of the vulnerability, including its description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises from a missing bounds check in the memory management driver of Android, paving the way for an out-of-bounds write that can be leveraged for local privilege escalation.

Affected Systems and Versions

The affected product is Android, particularly the Android SoC (System on Chip) versions.

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to locally escalate privileges on the target system, without the need for any additional execution privileges or user interaction.

Mitigation and Prevention

In this section, we outline steps to mitigate the risks associated with CVE-2021-0492 and enhance the overall security posture.

Immediate Steps to Take

Immediate actions include applying relevant security patches, monitoring system activities for suspicious behavior, and restricting unnecessary access privileges.

Long-Term Security Practices

Establishing robust security practices such as regular security updates, conducting vulnerability assessments, and implementing least privilege access can help prevent similar vulnerabilities in the future.

Patching and Updates

Regularly updating the affected systems with the latest security patches provided by the vendor is crucial to remediate the CVE-2021-0492 vulnerability and strengthen overall security.