CVE-2019-10021 Explained : Impact and Mitigation

A vulnerability was found in version 4.01.01 of Xpdf, affecting the ImageStream::ImageStream function in Stream.cc due to a floating point exception (FPE).

Understanding CVE-2019-10021

This CVE identifies a specific vulnerability in Xpdf version 4.01.01.

What is CVE-2019-10021?

CVE-2019-10021 is a vulnerability in Xpdf 4.01.01, impacting the ImageStream::ImageStream function in Stream.cc by triggering a floating point exception (FPE).

The Impact of CVE-2019-10021

The vulnerability can potentially lead to system crashes, denial of service, or even remote code execution if exploited by malicious actors.

Technical Details of CVE-2019-10021

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability in Xpdf 4.01.01 occurs in the ImageStream::ImageStream function in Stream.cc due to a floating point exception (FPE).

Affected Systems and Versions

Affected Version: 4.01.01 of Xpdf
Specific Component: ImageStream::ImageStream function in Stream.cc

Exploitation Mechanism

The vulnerability can be exploited by triggering the floating point exception (FPE) in the nComps parameter of the ImageStream::ImageStream function.

Mitigation and Prevention

Protecting systems from CVE-2019-10021 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor patches or updates promptly.
Monitor vendor advisories for mitigation guidance.
Consider restricting access to vulnerable components.

Long-Term Security Practices

Regularly update software and systems to prevent vulnerabilities.
Conduct security assessments and audits to identify and address potential risks.
Educate users and administrators about secure practices to mitigate threats.

Patching and Updates

Check for patches or updates provided by Xpdf to address the vulnerability.
Apply the latest security fixes to ensure protection against known exploits.