CVE-2020-19463 : Security Advisory and Response
Learn about CVE-2020-19463, a vulnerability in PDF2JSON 0.70's vfprintf function that allows DoS attacks. Find out how to mitigate the risk and prevent exploitation.
PDF2JSON 0.70 vfprintf Function Stack Overflow Vulnerability
Understanding CVE-2020-19463
What is CVE-2020-19463?
An issue has been identified in the vfprintf function in PDF2JSON 0.70, allowing attackers to trigger a Denial of Service (DoS) attack due to a stack overflow.
The Impact of CVE-2020-19463
This vulnerability can be exploited by malicious actors to disrupt the normal operation of the PDF2JSON software, potentially leading to service unavailability.
Technical Details of CVE-2020-19463
Vulnerability Description
The vulnerability exists in the vfprintf function of PDF2JSON 0.70, enabling attackers to exploit a stack overflow.
Affected Systems and Versions
- Product: PDF2JSON 0.70
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
Attackers can craft malicious inputs to the vfprintf function, causing a stack overflow and resulting in a DoS condition.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches or updates provided by the software vendor.
- Implement input validation mechanisms to prevent malicious inputs.
- Monitor system logs for any unusual activity that could indicate an ongoing attack.
Long-Term Security Practices
- Regularly update software and systems to address known vulnerabilities.
- Conduct security assessments and penetration testing to identify and remediate weaknesses.
- Educate users and administrators about safe computing practices to mitigate risks.
Patching and Updates
Ensure that PDF2JSON 0.70 is updated to a patched version that addresses the stack overflow vulnerability.