CVE-2018-19777 : Vulnerability Insights and Analysis

Artifex MuPDF 1.14.0 contains an infinite loop vulnerability in the function svg_dev_end_tile, as demonstrated by mutool.

Understanding CVE-2018-19777

This CVE entry describes a specific vulnerability in Artifex MuPDF 1.14.0 that can lead to an infinite loop.

What is CVE-2018-19777?

The vulnerability is located in the function svg_dev_end_tile within the file svg-device.c in Artifex MuPDF 1.14.0. It allows for the creation of an infinite loop, which can be triggered using the mutool utility.

The Impact of CVE-2018-19777

The presence of this vulnerability can potentially lead to denial of service (DoS) attacks, causing affected systems to become unresponsive or crash.

Technical Details of CVE-2018-19777

Artifex MuPDF 1.14.0's vulnerability in the svg_dev_end_tile function is further detailed below.

Vulnerability Description

An infinite loop can be triggered in the function svg_dev_end_tile within Artifex MuPDF 1.14.0, allowing for potential exploitation.

Affected Systems and Versions

Product: Artifex MuPDF 1.14.0
Vendor: Artifex
Versions: All versions of Artifex MuPDF 1.14.0 are affected.

Exploitation Mechanism

The vulnerability can be exploited using the mutool utility, demonstrating the infinite loop capability within the svg_dev_end_tile function.

Mitigation and Prevention

Protecting systems from CVE-2018-19777 involves taking immediate and long-term security measures.

Immediate Steps to Take

Apply vendor patches or updates to mitigate the vulnerability.
Consider restricting access to potentially vulnerable components.

Long-Term Security Practices

Regularly update software and firmware to prevent known vulnerabilities.
Implement network segmentation to contain potential attacks.

Patching and Updates

Ensure that Artifex MuPDF is updated to a patched version that addresses the infinite loop vulnerability in the svg_dev_end_tile function.