CVE-2021-30698 : Security Advisory and Response

A null pointer dereference vulnerability has been identified and remedied in Apple products, leading to improved input validation in the affected systems.

Understanding CVE-2021-30698

This CVE record details a null pointer dereference issue that has been patched in various Apple products.

What is CVE-2021-30698?

CVE-2021-30698 is a vulnerability in Apple's iOS and iPadOS versions less than 14.6, macOS versions less than 11.4, and macOS versions less than 14.1. It allows a remote attacker to exploit the vulnerability and potentially trigger a denial of service.

The Impact of CVE-2021-30698

The impact of this vulnerability is significant as it can be exploited by a remote attacker to cause a denial of service on the affected Apple devices.

Technical Details of CVE-2021-30698

This section provides specific technical details regarding the vulnerability.

Vulnerability Description

The vulnerability involves a null pointer dereference issue that was addressed through enhanced input validation in the affected versions of iOS, iPadOS, and macOS.

Affected Systems and Versions

The vulnerability affects iOS and iPadOS versions less than 14.6, macOS versions less than 11.4, and macOS versions less than 14.1.

Exploitation Mechanism

A remote attacker can exploit this vulnerability to potentially cause a denial of service on the affected devices.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-30698, users are advised to take immediate and long-term security measures.

Immediate Steps to Take

Users should update their devices to the patched versions, including macOS Big Sur 11.4, Safari 14.1.1, iOS 14.6, and iPadOS 14.6.

Long-Term Security Practices

It is crucial to stay vigilant with regular security updates and implement best practices for securing Apple devices.

Patching and Updates

Regularly check for security patches and updates from Apple to ensure that your devices are protected against potential vulnerabilities.