CVE-2019-11413 : Security Advisory and Response

A vulnerability was found in Artifex MuJS 1.0.5, where the match function in regexp.c does not have a depth check, resulting in unlimited recursion.

Understanding CVE-2019-11413

What is CVE-2019-11413?

An issue was discovered in Artifex MuJS 1.0.5. It has unlimited recursion because the match function in regexp.c lacks a depth check.

The Impact of CVE-2019-11413

This vulnerability could be exploited to cause a denial of service (DoS) attack by triggering unlimited recursion, potentially leading to system instability or crashes.

Technical Details of CVE-2019-11413

Vulnerability Description

The match function in regexp.c in Artifex MuJS 1.0.5 lacks a depth check, allowing for unlimited recursion.

Affected Systems and Versions

Product: Artifex MuJS 1.0.5
Vendor: Artifex
Version: 1.0.5

Exploitation Mechanism

The vulnerability can be exploited by an attacker to craft a malicious input that triggers the match function, causing the application to enter into an infinite loop of recursion.

Mitigation and Prevention

Immediate Steps to Take

Apply the latest security patches provided by the vendor.
Monitor vendor advisories for updates and follow best practices for secure coding.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement input validation and proper error handling mechanisms in applications.
Conduct regular security assessments and audits to identify and mitigate potential risks.

Patching and Updates

Ensure that the latest patches and updates for Artifex MuJS are applied promptly to mitigate the risk of exploitation.