CVE-2019-1010006 Explained : Impact and Mitigation

Evince version 3.26.0 has a buffer overflow vulnerability that can lead to denial of service (DOS) or potential execution of malicious code when a crafted PDF file is opened.

Understanding CVE-2019-1010006

Evince 3.26.0 is susceptible to a buffer overflow vulnerability in the backend/tiff/tiff-document.c component, potentially allowing attackers to execute malicious code.

What is CVE-2019-1010006?

The vulnerability in Evince version 3.26.0 allows for a buffer overflow, leading to DOS or potential execution of malicious code. The issue arises from an incorrect implementation of the integer overflow protection mechanism.

The Impact of CVE-2019-1010006

The specific impact of this vulnerability includes denial of service (DOS) attacks or the execution of malicious code by exploiting the buffer overflow in Evince 3.26.0.

Technical Details of CVE-2019-1010006

Evince version 3.26.0 is affected by a buffer overflow vulnerability in the backend/tiff/tiff-document.c component.

Vulnerability Description

The vulnerability in Evince 3.26.0 stems from an incorrect implementation of the integer overflow protection mechanism in the functions tiff_document_render and tiff_document_get_thumbnail.

Affected Systems and Versions

Product: Evince
Vendor: Evince Team
Version: 3.26.0

Exploitation Mechanism

To exploit this vulnerability, an attacker needs to craft a specific PDF file and trick the victim into opening it, triggering the buffer overflow.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2019-1010006.

Immediate Steps to Take

Update Evince to a patched version that addresses the buffer overflow vulnerability.
Avoid opening PDF files from untrusted or unknown sources.
Implement network security measures to prevent malicious PDF files from reaching end-users.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Educate users on safe browsing habits and the risks associated with opening files from unfamiliar sources.

Patching and Updates

Ensure that all systems running Evince are updated with the latest security patches to mitigate the buffer overflow vulnerability.