CVE-2021-0643 : Security Advisory and Response

This CVE-2021-0643 affects the Android operating system versions 10, 11, and 12. The vulnerability allows unauthorized access to a long-term identifier, potentially leading to local information disclosure. No user interaction is required for exploitation.

Understanding CVE-2021-0643

This section provides insights into the nature and impact of CVE-2021-0643.

What is CVE-2021-0643?

CVE-2021-0643 involves a missing permission check in getAllSubInfoList of SubscriptionController.java in Android OS, which could result in unauthorized access to sensitive information

The Impact of CVE-2021-0643

The vulnerability allows an attacker to retrieve a long-term identifier without proper permissions, leading to local information disclosure.

Technical Details of CVE-2021-0643

This section delves into the technical aspects of the CVE-2021-0643 vulnerability.

Vulnerability Description

The flaw stems from a missing permission check in SubscriptionController.java, enabling unauthorized access to long-term identifiers.

Affected Systems and Versions

Android versions 10, 11, and 12 are impacted by this vulnerability, potentially exposing user information.

Exploitation Mechanism

Exploiting CVE-2021-0643 does not require user interaction, making it a serious threat to user privacy.

Mitigation and Prevention

Discover the necessary steps to mitigate the risks posed by CVE-2021-0643.

Immediate Steps to Take

Security experts recommend applying relevant security patches and updates to address CVE-2021-0643 promptly.

Long-Term Security Practices

Implement stringent access control measures and regularly update your Android operating system to defend against potential exploits.

Patching and Updates

Stay informed about the latest security bulletins from Android to protect your device from known vulnerabilities.