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CVE-2020-9809 : Exploit Details and Defense Strategies

Learn about CVE-2020-9809, an information disclosure vulnerability in Apple products allowing malicious apps to access kernel memory layout. Find mitigation steps and affected versions.

An information disclosure issue was addressed with improved state management in Apple products.

Understanding CVE-2020-9809

An information disclosure vulnerability affecting multiple Apple products.

What is CVE-2020-9809?

CVE-2020-9809 is an information disclosure vulnerability in iOS, macOS, tvOS, and watchOS, allowing a malicious application to determine kernel memory layout.

The Impact of CVE-2020-9809

The vulnerability could be exploited by a malicious app to access sensitive kernel memory information.

Technical Details of CVE-2020-9809

Details of the vulnerability and affected systems.

Vulnerability Description

The issue was fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, and watchOS 6.2.5.

Affected Systems and Versions

        iOS: Less than 13.5 and iPadOS 13.5
        macOS: Less than Catalina 10.15.5
        tvOS: Less than 13.4.5
        watchOS: Less than 6.2.5

Exploitation Mechanism

A malicious application could exploit the vulnerability to determine kernel memory layout.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2020-9809.

Immediate Steps to Take

        Update affected Apple devices to the fixed versions mentioned.
        Avoid downloading apps from untrusted sources.

Long-Term Security Practices

        Regularly update software and firmware on Apple devices.
        Implement app security best practices to prevent malicious exploitation.

Patching and Updates

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

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