CVE-2021-30673 : Security Advisory and Response

An access issue in macOS has been identified and fixed. This CVE affects macOS versions less than 11.4 and macOS versions released before 2021, allowing malicious applications to access a user's call history.

Understanding CVE-2021-30673

This CVE addresses an access issue in macOS that could be exploited by malicious applications to gain access to a user's call history.

What is CVE-2021-30673?

CVE-2021-30673 is a vulnerability in macOS that allows unauthorized access to a user's call history through a malicious application.

The Impact of CVE-2021-30673

The impact of this vulnerability is the potential leakage of sensitive call history information to unauthorized parties, posing a privacy risk to affected users.

Technical Details of CVE-2021-30673

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability allows a malicious application to bypass access restrictions and access a user's call history on vulnerable macOS systems.

Affected Systems and Versions

macOS versions less than 11.4 and versions released before 2021 are affected by this vulnerability.

Exploitation Mechanism

Malicious applications exploit this vulnerability to improperly access the call history data of users on affected macOS systems.

Mitigation and Prevention

To secure systems from CVE-2021-30673, immediate steps and long-term security practices should be implemented.

Immediate Steps to Take

Users should update their macOS systems to version 11.4 or apply the necessary security updates to protect against this vulnerability.

Long-Term Security Practices

Regularly update software, use reputable security solutions, and be cautious with third-party applications to enhance overall system security.

Patching and Updates

Apple has released patches addressing CVE-2021-30673 in macOS Big Sur 11.4 and Security Update 2021-003 Catalina.