CVE-2018-6352 : Vulnerability Insights and Analysis

PoDoFo 0.9.5 has a vulnerability in the PdfParser::ReadObjectsInternal function that allows remote attackers to trigger a denial of service via a crafted PDF file.

Understanding CVE-2018-6352

This CVE involves an excessive iteration issue in PoDoFo 0.9.5, potentially leading to a denial of service attack.

What is CVE-2018-6352?

The vulnerability in PoDoFo 0.9.5 allows malicious actors to exploit excessive iteration in PdfParser::ReadObjectsInternal, causing a denial of service by using a specially crafted PDF file.

The Impact of CVE-2018-6352

Exploiting this vulnerability can result in a denial of service condition, impacting the availability of the affected system.

Technical Details of CVE-2018-6352

PoDoFo 0.9.5 vulnerability details and affected systems.

Vulnerability Description

The PdfParser::ReadObjectsInternal function in PoDoFo 0.9.5 experiences excessive iteration, enabling remote attackers to launch a denial of service attack through a malicious PDF file.

Affected Systems and Versions

Product: PoDoFo 0.9.5
Vendor: PoDoFo
Version: All versions

Exploitation Mechanism

Malicious actors can exploit the excessive iteration in PdfParser::ReadObjectsInternal to create a denial of service condition using a specifically crafted PDF file.

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2018-6352 vulnerability.

Immediate Steps to Take

Apply vendor patches or updates promptly.
Avoid opening PDF files from untrusted or unknown sources.
Implement network-level protections to filter out potentially malicious PDF files.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and audits to identify and remediate potential weaknesses.

Patching and Updates

Check for and apply patches released by PoDoFo to fix the vulnerability in PdfParser::ReadObjectsInternal.