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CVE-2019-8851 Explained : Impact and Mitigation

Learn about CVE-2019-8851, a vulnerability in macOS causing Mac devices not to lock immediately upon waking up. Find mitigation steps and update recommendations here.

This CVE-2019-8851 article provides insights into a logic issue in macOS that affects the locking mechanism upon waking up.

Understanding CVE-2019-8851

What is CVE-2019-8851?

CVE-2019-8851 addresses a logic problem in macOS that impacts the immediate locking of Mac devices upon waking up.

The Impact of CVE-2019-8851

The vulnerability could lead to a Mac device not promptly locking as intended after waking up.

Technical Details of CVE-2019-8851

Vulnerability Description

Enhanced state management was implemented to resolve the logic problem in macOS.

Affected Systems and Versions

        Product: macOS
        Vendor: Apple
        Versions Affected: Less than 10.15

Exploitation Mechanism

The issue arises when a Mac device wakes up and fails to lock immediately as expected.

Mitigation and Prevention

Immediate Steps to Take

        Update macOS to version 10.15.2 or apply Security Updates 2019-002 for Mojave and 2019-007 for High Sierra.

Long-Term Security Practices

        Regularly check for system updates and security patches.
        Implement additional security measures to safeguard against potential vulnerabilities.

Patching and Updates

Ensure timely installation of macOS updates and security patches to mitigate the CVE-2019-8851 vulnerability.

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