CVE-2019-10022 : Vulnerability Insights and Analysis

A vulnerability has been identified in Xpdf 4.01.01 where the function Gfx::opSetExtGState in Gfx.cc is susceptible to a NULL pointer dereference.

Understanding CVE-2019-10022

This CVE-2019-10022 vulnerability affects Xpdf 4.01.01, leading to a NULL pointer dereference in the Gfx::opSetExtGState function.

What is CVE-2019-10022?

CVE-2019-10022 is a vulnerability in Xpdf 4.01.01 that allows attackers to trigger a NULL pointer dereference by exploiting the Gfx::opSetExtGState function in Gfx.cc.

The Impact of CVE-2019-10022

This vulnerability could potentially lead to a denial of service (DoS) condition or possibly remote code execution if successfully exploited.

Technical Details of CVE-2019-10022

This section provides more technical insights into the CVE-2019-10022 vulnerability.

Vulnerability Description

The issue in Xpdf 4.01.01 arises from a NULL pointer dereference in the Gfx::opSetExtGState function within Gfx.cc.

Affected Systems and Versions

Product: Xpdf 4.01.01
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious PDF file to trigger the NULL pointer dereference in the Gfx::opSetExtGState function.

Mitigation and Prevention

To address CVE-2019-10022, follow these mitigation strategies:

Immediate Steps to Take

Update Xpdf to a patched version that addresses the NULL pointer dereference.
Avoid opening PDF files from untrusted or unknown sources.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Ensure that Xpdf is regularly updated to the latest version to mitigate the vulnerability and enhance overall system security.