CVE-2021-0483 : Security Advisory and Response

Android's AAudioService in versions Android-10 and Android-11 is vulnerable to a use-after-free issue due to a race condition, potentially leading to local privilege escalation without user interaction.

Understanding CVE-2021-0483

This CVE relates to a vulnerability in Android's AAudioService that could allow an attacker to escalate privileges locally.

What is CVE-2021-0483?

CVE-2021-0483 is a use-after-free vulnerability in Android's AAudioService, which may be exploited to achieve local privilege escalation without requiring user interaction.

The Impact of CVE-2021-0483

The impact of this CVE could result in an attacker gaining elevated privileges on the affected Android device.

Technical Details of CVE-2021-0483

This section provides technical insights into the vulnerability.

Vulnerability Description

The vulnerability stems from a race condition in multiple methods of AAudioService, allowing for the exploitation of a use-after-free scenario.

Affected Systems and Versions

Android versions 10 and 11 are specifically affected by this vulnerability.

Exploitation Mechanism

Exploiting this vulnerability does not require user interaction, as the race condition can be leveraged for local privilege escalation.

Mitigation and Prevention

Learn how to address and mitigate the risks associated with CVE-2021-0483.

Immediate Steps to Take

Immediate actions to secure systems post CVE disclosure.

Long-Term Security Practices

Best security practices to implement for long-term protection.

Patching and Updates

Guidance on applying necessary patches and updates from the vendor to remediate the vulnerability.