CVE-2018-19475 : What You Need to Know

Artifex Ghostscript versions prior to 9.26 contain a vulnerability in the psi/zdevice2.c file that allows cyber attackers to bypass access restrictions. This CVE was published on November 23, 2018.

Understanding CVE-2018-19475

This CVE affects Artifex Ghostscript versions before 9.26, enabling attackers to circumvent access limitations.

What is CVE-2018-19475?

The vulnerability in the psi/zdevice2.c file of Artifex Ghostscript versions prior to 9.26 allows remote attackers to bypass intended access restrictions due to inadequate stack space checks.

The Impact of CVE-2018-19475

The vulnerability enables cyber attackers to bypass intended access limitations, potentially leading to unauthorized access and exploitation of affected systems.

Technical Details of CVE-2018-19475

Artifex Ghostscript vulnerability details and affected systems.

Vulnerability Description

The issue in psi/zdevice2.c of Artifex Ghostscript before 9.26 allows remote attackers to bypass access restrictions by not properly checking available stack space.

Affected Systems and Versions

Product: Artifex Ghostscript
Vendor: Artifex
Versions affected: All versions prior to 9.26

Exploitation Mechanism

Attackers exploit the lack of proper examination of available stack space when the device remains unchanged to bypass intended access restrictions.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2018-19475.

Immediate Steps to Take

Update Artifex Ghostscript to version 9.26 or later to patch the vulnerability.
Monitor vendor advisories for security updates and apply patches promptly.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement network security measures to detect and prevent unauthorized access.

Patching and Updates

Apply the security updates provided by Artifex to address the vulnerability in Ghostscript.