CVE-2019-13283 : Security Advisory and Response

Xpdf 4.01.01 is affected by a heap-based buffer over-read vulnerability in the FoFiType1::parse method, potentially leading to a Denial of Service or information disclosure.

Understanding CVE-2019-13283

This CVE involves a vulnerability in Xpdf 4.01.01 that could be exploited by a crafted PDF file to trigger a heap-based buffer over-read.

What is CVE-2019-13283?

The vulnerability in Xpdf 4.01.01 allows an attacker to exploit a heap-based buffer over-read due to a lack of validity check on the source string length before copying, potentially leading to a Denial of Service or information leakage.

The Impact of CVE-2019-13283

Exploiting this vulnerability could result in a Denial of Service scenario, disclosure of sensitive information, or other unspecified consequences by manipulating a PDF document.

Technical Details of CVE-2019-13283

Xpdf 4.01.01 is susceptible to a heap-based buffer over-read vulnerability due to a flaw in the FoFiType1::parse method.

Vulnerability Description

The vulnerability arises from the absence of a validity check on the source string length before performing a fixed-length copy, potentially leading to a heap-based buffer over-read.

Affected Systems and Versions

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

Exploitation Mechanism

Attackers can exploit this vulnerability by providing a manipulated PDF document to the pdftotext utility.

Mitigation and Prevention

To address CVE-2019-13283, follow these steps:

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 the vendor and apply patches as soon as they are available.