CVE-2021-0330 : What You Need to Know

This article provides detailed information about CVE-2021-0330, a security vulnerability affecting Android devices.

Understanding CVE-2021-0330

CVE-2021-0330 is a vulnerability found in add_user_ce and remove_user_ce of storaged.cpp in Android devices. It is categorized as an elevation of privilege issue.

What is CVE-2021-0330?

The vulnerability in storaged.cpp can result in a use-after-free scenario due to improper locking. This flaw could be exploited locally, leading to privilege escalation on the affected Android devices running versions Android-9, Android-10, and Android-11.

The Impact of CVE-2021-0330

This vulnerability could allow an attacker to escalate their privileges on the compromised device without requiring any additional user interaction, posing a significant security risk.

Technical Details of CVE-2021-0330

The technical details of CVE-2021-0330 include:

Vulnerability Description

The use-after-free vulnerability in add_user_ce and remove_user_ce of storaged.cpp due to improper locking, enabling local privilege escalation.

Affected Systems and Versions

The vulnerability affects Android devices operating on versions Android-9, Android-10, and Android-11.

Exploitation Mechanism

Exploiting this vulnerability does not necessitate user interaction, making it particularly dangerous for impacted devices.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-0330, users and organizations can take the following steps:

Immediate Steps to Take

Apply security patches provided by Android for the affected versions.
Monitor official sources for updates and security advisories regarding this vulnerability.
Implement least privilege access to limit the impact of potential attacks.

Long-Term Security Practices

Regularly update Android devices to the latest software versions.
Employ security best practices to prevent unauthorized access and privilege escalation.

Patching and Updates

Stay informed about security bulletins and advisories from Android to promptly address any emerging security threats.