CVE-2021-1875 : What You Need to Know

A double free issue in Apple products was addressed with improved memory management. This vulnerability affects various Apple products and versions including iOS, iPadOS, tvOS, watchOS, and macOS.

Understanding CVE-2021-1875

This CVE-2021-1875 vulnerability involves a double free issue that can result in heap corruption when processing a specifically crafted file. The issue has been resolved in the respective updates for Apple's operating systems.

What is CVE-2021-1875?

CVE-2021-1875 is a security vulnerability in Apple products that can lead to heap corruption due to a double free issue when handling malicious files.

The Impact of CVE-2021-1875

Exploitation of this vulnerability may allow attackers to execute arbitrary code, leading to potential system compromise and unauthorized access.

Technical Details of CVE-2021-1875

This section provides detailed technical information about the vulnerability.

Vulnerability Description

A double free issue in Apple products allows a malicious file to cause heap corruption, potentially leading to security risks if exploited.

Affected Systems and Versions

The affected systems include iOS, iPadOS, tvOS, watchOS, and macOS, with specific versions detailed within the CVE.

Exploitation Mechanism

Processing a specially crafted file triggers the vulnerability, resulting in heap corruption and possible system compromise.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-1875, users and administrators are advised to take immediate actions and establish long-term security practices.

Immediate Steps to Take

Users should update their Apple devices to the latest security patches that address CVE-2021-1875. It is crucial to apply the necessary updates promptly to prevent exploitation.

Long-Term Security Practices

Incorporating robust security measures, such as regular system updates, network segmentation, and user awareness training, can enhance overall security posture and reduce the risk of similar vulnerabilities.

Patching and Updates

Apple has released Security Update 2021-002 for Catalina, Security Update 2021-003 for Mojave, iOS 14.5, iPadOS 14.5, watchOS 7.4, tvOS 14.5, and macOS Big Sur 11.3 to address the CVE-2021-1875 vulnerability.