CVE-2020-19466 Explained : Impact and Mitigation

An issue has been found in function DCTStream::transformDataUnit in PDF2JSON 0.70 that allows attackers to cause a Denial of Service due to an invalid read of size 1.

Understanding CVE-2020-19466

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

What is CVE-2020-19466?

The vulnerability in function DCTStream::transformDataUnit in PDF2JSON 0.70 enables attackers to execute a Denial of Service attack by exploiting an invalid read operation.

The Impact of CVE-2020-19466

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

Technical Details of CVE-2020-19466

PDF2JSON 0.70 is susceptible to a specific issue that allows for a Denial of Service attack.

Vulnerability Description

The vulnerability arises from an invalid read operation in the DCTStream::transformDataUnit function within PDF2JSON 0.70.

Affected Systems and Versions

Affected Systems: PDF2JSON 0.70
Affected Versions: All versions of PDF2JSON 0.70

Exploitation Mechanism

Attackers can exploit this vulnerability by triggering an invalid read operation of size 1 in the DCTStream::transformDataUnit function.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2020-19466.

Immediate Steps to Take

Disable or restrict access to the vulnerable function in PDF2JSON 0.70.
Monitor system logs for any unusual activity that may indicate a potential attack.

Long-Term Security Practices

Regularly update PDF2JSON to the latest secure version.
Implement network security measures to detect and block malicious traffic.

Patching and Updates

Apply patches or security updates provided by the PDF2JSON vendor to fix the vulnerability and enhance system security.