CVE-2018-3921 Explained : Impact and Mitigation

Computerinsel Photoline 20.54 for OS X is affected by a memory corruption vulnerability in the PSD-parsing feature, allowing attackers to execute arbitrary code.

Understanding CVE-2018-3921

This CVE involves a stack-based buffer overflow vulnerability in Computerinsel Photoline 20.54 for OS X.

What is CVE-2018-3921?

A memory corruption flaw in the PSD-parsing function of Computerinsel Photoline 20.54 can be exploited by processing a specially crafted PSD image, leading to a stack overflow and arbitrary data overwriting.

The Impact of CVE-2018-3921

CVSS Base Score: 8.8 (High)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2018-3921

Computerinsel Photoline 20.54 for OS X is susceptible to exploitation due to the following reasons:

Vulnerability Description

The vulnerability allows an attacker to trigger a stack overflow by sending a malicious PSD image, potentially leading to code execution.

Affected Systems and Versions

Product: Computerinsel Photoline
Vendor: Computerinsel
Version: Computerinsel Photoline 20.54 for OS X

Exploitation Mechanism

By processing a specially crafted PSD image using the affected software, an attacker can exploit the vulnerability to overwrite arbitrary data and execute malicious code.

Mitigation and Prevention

To address CVE-2018-3921, consider the following steps:

Immediate Steps to Take

Update Computerinsel Photoline to the latest version.
Avoid opening PSD images from untrusted or unknown sources.
Implement network security measures to prevent unauthorized access.

Long-Term Security Practices

Regularly monitor for security updates and patches.
Conduct security training for users to recognize and report suspicious activities.

Patching and Updates

Apply security patches provided by Computerinsel promptly to mitigate the vulnerability.