CVE-2018-19478 : Security Advisory and Response

Artifex Ghostscript versions prior to 9.26 are susceptible to a vulnerability that can result in prolonged computation when parsing a specifically crafted PDF file.

Understanding CVE-2018-19478

This CVE entry highlights a vulnerability in Artifex Ghostscript that could lead to extended computation times when processing a maliciously crafted PDF file.

What is CVE-2018-19478?

In Artifex Ghostscript versions before 9.26, a carefully manipulated PDF file can trigger an exceptionally long computation process during file parsing.

The Impact of CVE-2018-19478

The vulnerability can be exploited by attackers to cause significant delays in computation, potentially leading to denial of service (DoS) attacks or system unresponsiveness.

Technical Details of CVE-2018-19478

Artifex Ghostscript vulnerability details and affected systems.

Vulnerability Description

Parsing a PDF file in Artifex Ghostscript versions prior to 9.26 can lead to a significantly prolonged computation if the file is deliberately crafted in a specific manner.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: All versions prior to 9.26

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting PDF files in a specific way to trigger prolonged computation processes, potentially causing system performance issues.

Mitigation and Prevention

Steps to mitigate the CVE-2018-19478 vulnerability.

Immediate Steps to Take

Update Artifex Ghostscript to version 9.26 or later to mitigate the vulnerability.
Exercise caution when handling PDF files from untrusted sources.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement network security measures to detect and prevent malicious PDF files.

Patching and Updates

Ensure timely installation of security updates and patches provided by Artifex Ghostscript to address the vulnerability.