CVE-2019-16762 : Vulnerability Insights and Analysis

A specifically designed Bitcoin script has the potential to create a difference between the defined SLP consensus rules and the validation outcome of the slpjs npm package. This could lead to an attacker deliberately creating a Bitcoin script to instigate a hard-fork from the SLP consensus. To mitigate this issue, users should upgrade to any version that is equal to or greater than 0.21.4.

Understanding CVE-2019-16762

This CVE involves a vulnerability in the slpjs npm package that could be exploited by a specially crafted Bitcoin script to cause a discrepancy in the SLP consensus rules.

What is CVE-2019-16762?

CVE-2019-16762 is a vulnerability in the slpjs npm package that allows an attacker to create a specially crafted Bitcoin script, potentially leading to a hard-fork from the SLP consensus.

The Impact of CVE-2019-16762

CVSS Base Score: 5.7 (Medium Severity)
Attack Vector: Network
Attack Complexity: High
Privileges Required: High
User Interaction: Required
Integrity Impact: High
Availability Impact: High
Scope: Unchanged
Confidentiality Impact: None
CWE ID: CWE-20 Improper Input Validation

Technical Details of CVE-2019-16762

This section provides detailed technical information about the vulnerability.

Vulnerability Description

A specially crafted Bitcoin script can cause a discrepancy between the specified SLP consensus rules and the validation result of the slpjs npm package.

Affected Systems and Versions

Affected Product: slpjs
Vendor: simpleledger
Affected Version: < 0.21.4

Exploitation Mechanism

The vulnerability can be exploited by creating a specially crafted Bitcoin script that triggers the discrepancy in the SLP consensus rules.

Mitigation and Prevention

To address CVE-2019-16762, users should take immediate steps and adopt long-term security practices.

Immediate Steps to Take

Upgrade to slpjs version 0.21.4 or higher to mitigate the vulnerability.

Long-Term Security Practices

Regularly update software packages to the latest versions.
Implement input validation mechanisms to prevent similar vulnerabilities.
Monitor for any suspicious activities related to Bitcoin script execution.
Stay informed about security advisories and updates from the slpjs project.

Patching and Updates

Stay informed about security patches and updates released by the slpjs project to address vulnerabilities.