CVE-2019-9588 : Security Advisory and Response

Xpdf 4.01 contains a vulnerability in the gAtomicIncrement() function that can lead to an Invalid memory access, potentially resulting in a Denial of Service condition. This CVE allows an attacker to exploit the vulnerability by sending a specially crafted PDF file.

Understanding CVE-2019-9588

This CVE involves a vulnerability in Xpdf 4.01 that can be exploited through a specific function, leading to memory access issues and potential service denial.

What is CVE-2019-9588?

The vulnerability in the gAtomicIncrement() function in Xpdf 4.01 allows an attacker to trigger an Invalid memory access by sending a malicious PDF file to the pdftops binary, potentially causing a Denial of Service condition.

The Impact of CVE-2019-9588

The consequences of this vulnerability include a Segmentation fault, which can result in a Denial of Service condition. Other potential impacts are currently unspecified.

Technical Details of CVE-2019-9588

Xpdf 4.01 vulnerability details and affected systems.

Vulnerability Description

The vulnerability lies in the gAtomicIncrement() function in GMutex.h in Xpdf 4.01, allowing for an Invalid memory access when processing crafted PDF files.

Affected Systems and Versions

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

Exploitation Mechanism

Attackers exploit the vulnerability by sending a specially crafted PDF file to the pdftops binary.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2019-9588.

Immediate Steps to Take

Apply vendor patches or updates promptly.
Avoid opening PDF files from untrusted sources.

Long-Term Security Practices

Regularly update software and applications to the latest versions.
Implement network security measures to detect and block malicious PDF files.

Patching and Updates

Check for security advisories from Xpdf for patches addressing this vulnerability.