CVE-2019-19817 : Vulnerability Insights and Analysis

Nitro Free PDF Reader 12.0.0.112's npdf.dll library is vulnerable to an Out-of-Bounds Read exploit in the JBIG2Decode component.

Understanding CVE-2019-19817

This CVE involves a specific vulnerability in the Nitro Free PDF Reader 12.0.0.112.

What is CVE-2019-19817?

The npdf.dll library in Nitro Free PDF Reader 12.0.0.112 contains a vulnerability in the JBIG2Decode component, allowing exploitation through specially crafted Unicode content.

The Impact of CVE-2019-19817

Attackers can exploit this vulnerability to execute arbitrary code or cause a denial of service (DoS) condition.
Successful exploitation could lead to unauthorized access to sensitive information or system compromise.

Technical Details of CVE-2019-19817

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability, named CAPPDAnnotHandlerUtils::PDAnnotHandlerDestroyData2+0x2e8a Out-of-Bounds Read, allows attackers to read data outside the bounds of an allocated memory buffer.

Affected Systems and Versions

Product: Nitro Free PDF Reader
Version: 12.0.0.112

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious Unicode content to trigger the Out-of-Bounds Read.

Mitigation and Prevention

Protecting systems from CVE-2019-19817 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Nitro Free PDF Reader to the latest version to patch the vulnerability.
Consider using alternative PDF readers until a patch is available.

Long-Term Security Practices

Regularly update software and applications to mitigate known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Monitor official Nitro software channels for security updates and patches to address CVE-2019-19817.