CVE-2019-19818 : Security Advisory and Response

A vulnerability has been identified in the npdf.dll library of Nitro Free PDF Reader version 12.0.0.112. This vulnerability, known as JBIG2Decode library, is caused by a flaw in the CAPPDAnnotHandlerUtils::PDAnnotHandlerDestroyData2+0xa08a function. An attacker can exploit this vulnerability by using crafted Unicode content, leading to an out-of-bounds read.

Understanding CVE-2019-19818

This CVE pertains to a specific vulnerability in the Nitro Free PDF Reader version 12.0.0.112.

What is CVE-2019-19818?

The vulnerability in the npdf.dll library of Nitro Free PDF Reader version 12.0.0.112 allows attackers to perform an out-of-bounds read by utilizing crafted Unicode content.

The Impact of CVE-2019-19818

The exploitation of this vulnerability can lead to potential security breaches and unauthorized access to sensitive information.

Technical Details of CVE-2019-19818

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability arises from a flaw in the CAPPDAnnotHandlerUtils::PDAnnotHandlerDestroyData2+0xa08a function within the npdf.dll library.

Affected Systems and Versions

Nitro Free PDF Reader version 12.0.0.112

Exploitation Mechanism

Attackers can exploit this vulnerability by using specially crafted Unicode content to trigger an out-of-bounds read.

Mitigation and Prevention

Protecting systems from CVE-2019-19818 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Nitro Free PDF Reader to a patched version, if available.
Implement security measures to detect and prevent unauthorized access.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Conduct security assessments and audits to identify and mitigate potential risks.

Patching and Updates

Stay informed about security updates and patches released by Nitro to address CVE-2019-19818.