CVE-2021-0515 : What You Need to Know

A vulnerability has been identified in Android that could allow an attacker to execute remote code exploiting an out of bounds write issue in Factory::CreateStrictFunctionMap of factory.cc.

Understanding CVE-2021-0515

This CVE, registered as CVE-2021-0515, affects Android versions 8.1, 9, 10, and 11, potentially leading to remote code execution without the need for user interaction.

What is CVE-2021-0515?

The vulnerability lies in the incorrect bounds check within Factory::CreateStrictFunctionMap of factory.cc in Android. This flaw could be exploited by an attacker to execute remote code without requiring additional privileges.

The Impact of CVE-2021-0515

If successfully exploited, CVE-2021-0515 could result in remote code execution in an unprivileged process, posing a significant security risk to affected systems running Android versions 8.1 through 11.

Technical Details of CVE-2021-0515

The technical details of CVE-2021-0515 are as follows:

Vulnerability Description

The vulnerability stems from an incorrect bounds check in Factory::CreateStrictFunctionMap of factory.cc, potentially leading to an out of bounds write issue.

Affected Systems and Versions

Android versions 8.1, 9, 10, and 11 are impacted by this vulnerability, making devices running these versions susceptible to remote code execution attacks.

Exploitation Mechanism

Exploiting this vulnerability requires no additional privileges or user interaction, as the out of bounds write issue in Factory::CreateStrictFunctionMap could be leveraged for remote code execution.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-0515, users and system administrators are advised to take the following steps:

Immediate Steps to Take

Update the affected Android devices to the latest security patches provided by the official sources.
Monitor security bulletins and advisories related to Android for any further updates regarding this vulnerability.

Long-Term Security Practices

Implement strict access controls and security policies to prevent unauthorized access to vulnerable systems.
Conduct regular security audits and vulnerability assessments to detect and address security weaknesses proactively.

Patching and Updates

Regularly update Android devices to ensure that security patches are applied promptly to address known vulnerabilities and enhance overall system security.