CVE-2020-9783 : Security Advisory and Response

A use after free issue was addressed with improved memory management in various Apple products, potentially leading to code execution.

Understanding CVE-2020-9783

This CVE relates to a vulnerability in multiple Apple products that could allow an attacker to execute arbitrary code.

What is CVE-2020-9783?

CVE-2020-9783 is a use after free issue in iOS, iPadOS, tvOS, Safari, iTunes for Windows, and iCloud for Windows, which could be exploited by processing maliciously crafted web content.

The Impact of CVE-2020-9783

The vulnerability could lead to code execution on affected systems, posing a significant security risk to users of the impacted Apple products.

Technical Details of CVE-2020-9783

This section provides more in-depth technical information about the CVE-2020-9783 vulnerability.

Vulnerability Description

The use after free issue was fixed in iOS 13.4 and iPadOS 13.4, tvOS 13.4, Safari 13.1, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, and iCloud for Windows 7.18.

Affected Systems and Versions

iOS and iPadOS versions less than 13.4
tvOS versions less than 13.4
Safari version less than 13.1
iTunes for Windows version less than 12.10.5
iCloud for Windows version less than 10.9.3
iCloud for Windows (Legacy) version less than 7.18

Exploitation Mechanism

Processing specially crafted web content could trigger the use after free issue, potentially allowing an attacker to execute malicious code.

Mitigation and Prevention

To protect systems from CVE-2020-9783, users and administrators should take the following steps:

Immediate Steps to Take

Update affected Apple products to the fixed versions mentioned above.
Avoid visiting untrusted websites or clicking on suspicious links.
Regularly monitor Apple's security advisories for any new updates.

Long-Term Security Practices

Implement strong web browsing security practices.
Educate users on safe web browsing habits and the risks of interacting with unknown websites.

Patching and Updates

Apply security patches promptly as they become available from Apple to address known vulnerabilities.