CVE-2020-3880 : What You Need to Know

An out-of-bounds read vulnerability in Apple products could allow arbitrary code execution.

Understanding CVE-2020-3880

What is CVE-2020-3880?

An out-of-bounds read issue was fixed in various Apple products, including iOS, iPadOS, macOS, and more, to prevent potential arbitrary code execution when processing a specially crafted image.

The Impact of CVE-2020-3880

Processing a maliciously crafted image could lead to arbitrary code execution, posing a significant security risk.

Technical Details of CVE-2020-3880

Vulnerability Description

The vulnerability involves an out-of-bounds read that was mitigated through enhanced input validation in affected Apple products.

Affected Systems and Versions

iOS and iPadOS versions less than 13.3
macOS versions less than 10.15 and 13.3
macOS version less than 6.1

Exploitation Mechanism

The vulnerability could be exploited by processing a specially crafted image, triggering the execution of arbitrary code.

Mitigation and Prevention

Immediate Steps to Take

Update affected systems to the patched versions: watchOS 6.1.2, iOS 13.3.1, iPadOS 13.3.1, tvOS 13.3.1, macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra

Long-Term Security Practices

Regularly update software and firmware to the latest versions
Exercise caution when handling untrusted images or files

Patching and Updates

Apply security updates and patches provided by Apple to address the vulnerability.