CVE-2019-13282 : Vulnerability Insights and Analysis

Xpdf version 4.01.01 may encounter a heap-based buffer over-read issue in the SampledFunction::transform function when processing large sample indices, potentially leading to various security risks.

Understanding CVE-2019-13282

Xpdf version 4.01.01 is susceptible to a heap-based buffer over-read vulnerability that can be exploited by manipulating PDF files.

What is CVE-2019-13282?

This vulnerability in Xpdf version 4.01.01 allows attackers to trigger a heap-based buffer over-read in the SampledFunction::transform function, potentially leading to Denial of Service attacks, information extraction, or other unspecified consequences.

The Impact of CVE-2019-13282

Exploitation of this vulnerability could result in Denial of Service attacks, leakage of sensitive information, or other adverse effects on systems utilizing the vulnerable Xpdf version.

Technical Details of CVE-2019-13282

Xpdf version 4.01.01 is affected by a heap-based buffer over-read vulnerability that can be exploited by manipulating PDF files.

Vulnerability Description

The vulnerability exists in the SampledFunction::transform function in Function.cc, triggered by processing large sample indices in Xpdf version 4.01.01.

Affected Systems and Versions

Product: Xpdf
Vendor: N/A
Version: 4.01.01

Exploitation Mechanism

Attackers can exploit this vulnerability by supplying a manipulated PDF file to the pdftotext utility.

Mitigation and Prevention

To address CVE-2019-13282, follow these mitigation strategies:

Immediate Steps to Take

Update Xpdf to a non-vulnerable version.
Avoid opening PDF files from untrusted sources.
Monitor vendor security advisories for patches.

Long-Term Security Practices

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

Patching and Updates

Apply patches and updates provided by Xpdf to fix the vulnerability.