CVE-2020-9878 : Security Advisory and Response

A buffer overflow issue in Apple products was addressed with improved memory handling, affecting iOS, macOS, tvOS, and watchOS.

Understanding CVE-2020-9878

What is CVE-2020-9878?

This CVE addresses a buffer overflow vulnerability in Apple products that could be exploited by processing a maliciously crafted USD file, potentially leading to unexpected application termination or arbitrary code execution.

The Impact of CVE-2020-9878

The vulnerability could allow attackers to execute arbitrary code or crash applications by exploiting the buffer overflow issue.

Technical Details of CVE-2020-9878

Vulnerability Description

The vulnerability involves a buffer overflow issue that was mitigated through enhanced memory handling.

Affected Systems and Versions

iOS versions less than 13.6 and iPadOS versions less than 13.6
macOS Catalina versions less than 10.15.6
tvOS versions less than 13.4.8
watchOS versions less than 6.2.8

Exploitation Mechanism

Processing a specially crafted USD file could trigger the vulnerability, leading to potential application crashes or code execution.

Mitigation and Prevention

Immediate Steps to Take

Update affected devices to iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, or watchOS 6.2.8.
Avoid opening or processing suspicious USD files.

Long-Term Security Practices

Regularly update software and firmware to the latest versions.
Implement security best practices to prevent buffer overflow attacks.

Patching and Updates

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