CVE-2020-19468 : Security Advisory and Response

An issue has been found in function EmbedStream::getChar in PDF2JSON 0.70 that allows attackers to cause a Denial of Service due to a null pointer dereference (invalid read of size 8).

Understanding CVE-2020-19468

This CVE describes a vulnerability in PDF2JSON 0.70 that can be exploited to trigger a Denial of Service attack.

What is CVE-2020-19468?

The vulnerability in function EmbedStream::getChar in PDF2JSON 0.70 enables attackers to execute a Denial of Service attack by exploiting a null pointer dereference issue.

The Impact of CVE-2020-19468

The vulnerability can lead to a Denial of Service condition, potentially disrupting the availability of the affected system or application.

Technical Details of CVE-2020-19468

PDF2JSON 0.70 is susceptible to a null pointer dereference vulnerability that can be exploited by attackers.

Vulnerability Description

The vulnerability in function EmbedStream::getChar allows attackers to trigger a Denial of Service by performing an invalid read operation of size 8.

Affected Systems and Versions

Product: PDF2JSON 0.70
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the function EmbedStream::getChar to trigger a null pointer dereference, leading to a Denial of Service.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the impact of CVE-2020-19468 and prevent potential attacks.

Immediate Steps to Take

Apply security patches or updates provided by the vendor.
Implement proper input validation to prevent malicious inputs.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Conduct regular security assessments and audits.
Keep software and systems up to date with the latest security patches.
Educate users and administrators about cybersecurity best practices.

Patching and Updates

Ensure that PDF2JSON is updated to a secure version that addresses the null pointer dereference vulnerability.