CVE-2017-7383 : Security Advisory and Response
Learn about CVE-2017-7383, a vulnerability in PoDoFo 0.9.5 that allows remote attackers to cause a denial of service by exploiting a NULL pointer dereference in a crafted PDF document. Find mitigation steps and prevention measures.
A crafted PDF document can provoke a denial of service in PoDoFo 0.9.5 by causing a NULL pointer dereference and application crash.
Understanding CVE-2017-7383
What is CVE-2017-7383?
The vulnerability in PoDoFo 0.9.5 allows remote attackers to trigger a denial of service through a crafted PDF document.
The Impact of CVE-2017-7383
This vulnerability can lead to a NULL pointer dereference and application crash, affecting the stability and functionality of the application.
Technical Details of CVE-2017-7383
Vulnerability Description
The issue is located in the code PdfFontFactory.cpp at line 195, character position 62.
Affected Systems and Versions
- Product: PoDoFo 0.9.5
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
Attackers can exploit this vulnerability by sending a specially crafted PDF document to the target system, triggering the NULL pointer dereference and causing the application to crash.
Mitigation and Prevention
Immediate Steps to Take
- Avoid opening PDF documents from untrusted or unknown sources.
- Regularly update PoDoFo to the latest version to patch known vulnerabilities.
Long-Term Security Practices
- Implement proper input validation mechanisms to prevent malformed PDF documents from causing issues.
- Conduct regular security audits and assessments to identify and address vulnerabilities.
Patching and Updates
Apply patches and updates provided by PoDoFo promptly to mitigate the CVE-2017-7383 vulnerability.