CVE-2017-6848 : Security Advisory and Response

PoDoFo 0.9.5 is vulnerable to a remote attack that can lead to a denial of service due to a NULL pointer dereference.

Understanding CVE-2017-6848

PoDoFo 0.9.5 vulnerability allows remote attackers to trigger a denial of service by exploiting a specific function.

What is CVE-2017-6848?

The function PdfXObject in PdfXObject.cpp of PoDoFo 0.9.5 is susceptible to a remote attack that can cause a denial of service through a NULL pointer dereference when a malicious file is utilized.

The Impact of CVE-2017-6848

This vulnerability can be exploited by remote attackers to crash the application, potentially leading to service disruption.

Technical Details of CVE-2017-6848

PoDoFo 0.9.5 vulnerability details and affected systems.

Vulnerability Description

The PoDoFo::PdfXObject::PdfXObject function in PdfXObject.cpp in PoDoFo 0.9.5 allows remote attackers to trigger a denial of service (NULL pointer dereference) by using a crafted file.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by utilizing a malicious file to trigger a NULL pointer dereference, resulting in a denial of service.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2017-6848.

Immediate Steps to Take

Apply vendor patches or updates if available.
Avoid opening or processing files from untrusted sources.
Implement file type validation mechanisms.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Conduct security assessments and code reviews to identify and address vulnerabilities.

Patching and Updates

Check for patches or updates from PoDoFo to address the vulnerability and apply them promptly.