CVE-2018-3889 : Exploit Details and Defense Strategies

Computerinsel Photoline 20.53 for OS X is vulnerable to an out-of-bounds write issue when processing specially crafted PCX images, allowing attackers to execute arbitrary code.

Understanding CVE-2018-3889

This CVE involves a high-severity vulnerability in Computerinsel Photoline that could be exploited by malicious actors to achieve code execution.

What is CVE-2018-3889?

A specially crafted PCX image processed via the application can lead to an out-of-bounds write, overwriting arbitrary data. An attacker can deliver a PCX image to trigger this vulnerability and gain code execution.

The Impact of CVE-2018-3889

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

Technical Details of CVE-2018-3889

Computerinsel Photoline 20.53 for OS X is susceptible to exploitation through the following details:

Vulnerability Description

The utilization of a custom-designed PCX image through the application may result in an out-of-bounds write, thereby overwriting any data of choice. By submitting a PCX image as an attack vector, an unauthorized individual can exploit this vulnerability and achieve code execution.

Affected Systems and Versions

Product: Computerinsel Photoline
Vendor: Talos
Version: Computerinsel Photoline 20.53 for OS X

Exploitation Mechanism

Attackers can exploit this vulnerability by providing a specially crafted PCX image to the application, triggering the out-of-bounds write issue.

Mitigation and Prevention

To address CVE-2018-3889, consider the following steps:

Immediate Steps to Take

Update Computerinsel Photoline to the latest version
Avoid opening PCX images from untrusted 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 on identifying malicious files

Patching and Updates

Apply patches provided by Talos for Computerinsel Photoline to fix the vulnerability