CVE-2020-9893 : Security Advisory and Response

A use after free issue was addressed with improved memory management in various Apple products, potentially allowing a remote attacker to cause unexpected application termination or arbitrary code execution.

Understanding CVE-2020-9893

What is CVE-2020-9893?

CVE-2020-9893 is a vulnerability related to a use after free issue that affects multiple Apple products.

The Impact of CVE-2020-9893

The vulnerability could be exploited by a remote attacker to trigger unexpected application termination or execute arbitrary code on the affected systems.

Technical Details of CVE-2020-9893

Vulnerability Description

The issue was fixed in iOS 13.6 and iPadOS 13.6, tvOS 13.4.8, watchOS 6.2.8, Safari 13.1.2, iTunes 12.10.8 for Windows, iCloud for Windows 11.3, and iCloud for Windows 7.20.

Affected Systems and Versions

iOS and iPadOS versions less than 13.6
tvOS versions less than 13.4.8
watchOS versions less than 6.2.8
Safari versions less than 13.1.2
iTunes for Windows versions less than 12.10.8
iCloud for Windows versions less than 11.3
iCloud for Windows (Legacy) versions less than 7.20

Exploitation Mechanism

The vulnerability involves a use after free issue that was mitigated through enhanced memory management.

Mitigation and Prevention

Immediate Steps to Take

Update affected Apple products to the specified versions where the issue is fixed.
Regularly check for security updates from Apple.

Long-Term Security Practices

Employ strong security measures on all devices and networks.
Educate users on safe browsing habits and potential security risks.

Patching and Updates

Ensure timely installation of security patches and updates provided by Apple to address known vulnerabilities.