CVE-2021-30695 : What You Need to Know

A vulnerability labeled as CVE-2021-30695 has been identified in Apple products, specifically in iOS, iPadOS, and macOS versions. This flaw could allow an attacker to perform an out-of-bounds read attack, potentially leading to the exposure of sensitive information. Here's what you need to know about this CVE.

Understanding CVE-2021-30695

This section delves into the essence of the CVE-2021-30695 vulnerability, detailing its impact, affected systems, technical aspects, and mitigation strategies.

What is CVE-2021-30695?

The CVE-2021-30695 vulnerability involves an out-of-bounds read issue that was mitigated through improved bounds checking. The flaw was specifically addressed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave, iOS 14.6, and iPadOS 14.6. It arises from processing a maliciously crafted USD file that could potentially unveil memory contents.

The Impact of CVE-2021-30695

The vulnerability could be exploited by an attacker to read memory beyond the allocated buffer, which may include sensitive information. This could lead to a breach of confidentiality and unauthorized access to critical data stored on the affected Apple devices.

Technical Details of CVE-2021-30695

This section provides in-depth technical insights into the CVE-2021-30695 vulnerability, including its description, affected systems, versions, and the exploitation mechanism.

Vulnerability Description

The flaw involves an out-of-bounds read issue, demonstrating the importance of thorough bounds checking to prevent potential data leaks or exposures within Apple devices running the affected versions.

Affected Systems and Versions

Apple products, including iOS, iPadOS, and macOS, are impacted by this vulnerability. Specifically, systems running macOS versions prior to 11.4 and iOS, iPadOS versions earlier than 14.6 are susceptible to exploitation.

Exploitation Mechanism

By processing a specially crafted USD file, attackers can trigger the out-of-bounds read vulnerability, potentially leading to memory disclosure and subsequent malicious activities.

Mitigation and Prevention

In this section, we outline the steps to mitigate the risks associated with CVE-2021-30695, safeguarding Apple users from potential security threats.

Immediate Steps to Take

Users are strongly advised to update their Apple devices to the latest patched versions, including macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave, iOS 14.6, and iPadOS 14.6 to address the CVE-2021-30695 vulnerability.

Long-Term Security Practices

Maintaining regular software updates, practicing safe browsing habits, and being cautious while accessing external files or links can help mitigate the risks of similar vulnerabilities in the future.

Patching and Updates

Apple has released security patches in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave, iOS 14.6, and iPadOS 14.6 to resolve the CVE-2021-30695 vulnerability. Users should promptly install these updates to strengthen the security posture of their devices.