CVE-2021-1860 : What You Need to Know

A memory initialization issue in Apple products has been identified and addressed. This vulnerability could allow a malicious application to disclose kernel memory. Ensure your devices are updated with the necessary security patches.

Understanding CVE-2021-1860

This CVE identifies a memory initialization issue in various Apple products, leaving them susceptible to potential exploitation by malicious applications.

What is CVE-2021-1860?

CVE-2021-1860 refers to a memory handling vulnerability present in iOS, iPadOS, TVOS, watchOS, and macOS systems, where a malicious app could potentially access kernel memory.

The Impact of CVE-2021-1860

If exploited, this vulnerability could lead to unauthorized access to sensitive kernel memory, posing a significant security risk to affected devices and potentially compromising user data.

Technical Details of CVE-2021-1860

This section provides detailed insights into the vulnerability, affected systems, and how it can be exploited.

Vulnerability Description

The vulnerability arises from a memory initialization issue in Apple's operating systems, allowing unauthorized disclosure of kernel memory when exploited by a malicious application.

Affected Systems and Versions

The following Apple products and versions are affected by CVE-2021-1860:

iOS and iPadOS: Versions less than 14.5
tvOS: Versions less than 14.5
watchOS: Versions less than 7.4
macOS: Versions less than 11.3 and 2021

Exploitation Mechanism

A malicious application can exploit the memory handling flaw to gain unauthorized access to kernel memory, potentially leading to the disclosure of sensitive information.

Mitigation and Prevention

Protecting your devices from CVE-2021-1860 involves taking immediate action and implementing long-term security measures.

Immediate Steps to Take

Update your Apple devices to the latest security patches, including Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, and macOS Big Sur 11.3.

Long-Term Security Practices

Regularly check for and install software updates to ensure your devices are protected against known vulnerabilities.
Exercise caution when downloading and installing apps from untrusted sources.
Consider implementing additional security measures such as endpoint protection solutions.

Patching and Updates

Stay informed about security advisories and updates released by Apple to address vulnerabilities like CVE-2021-1860. Regularly apply these updates to maintain the security of your devices.