CVE-2018-5295 : What You Need to Know

PoDoFo 0.9.5 is vulnerable to an integer overflow in the ParseStream function, potentially leading to a denial-of-service attack through a malicious PDF file.

Understanding CVE-2018-5295

This CVE identifies a specific vulnerability in the PoDoFo library version 0.9.5.

What is CVE-2018-5295?

The vulnerability in PoDoFo 0.9.5 allows remote attackers to trigger an integer overflow in the ParseStream function, which could result in a denial-of-service attack when processing a specially crafted PDF file.

The Impact of CVE-2018-5295

Exploitation of this vulnerability could lead to a denial-of-service condition, impacting the availability of systems that process PDF files using the PoDoFo library.

Technical Details of CVE-2018-5295

PoDoFo 0.9.5 is affected by an integer overflow vulnerability in the ParseStream function.

Vulnerability Description

The vulnerability arises due to improper handling of integer values in the PdfXRefStreamParserObject::ParseStream function within the PoDoFo library.

Affected Systems and Versions

Product: PoDoFo
Vendor: N/A
Version: 0.9.5

Exploitation Mechanism

Remote attackers can exploit this vulnerability by providing a specially crafted PDF file to trigger the integer overflow, potentially leading to a denial-of-service attack.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks associated with CVE-2018-5295.

Immediate Steps to Take

Update PoDoFo to a patched version that addresses the integer overflow vulnerability.
Exercise caution when handling PDF files from untrusted sources to prevent exploitation.

Long-Term Security Practices

Regularly update software libraries and dependencies to ensure the latest security patches are applied.
Implement network security measures to detect and block potentially malicious PDF files.

Patching and Updates

Stay informed about security advisories related to PoDoFo and promptly apply patches released by the vendor to address known vulnerabilities.