CVE-2018-11703 : Security Advisory and Response

FastStone Image Viewer version 6.2 experiences a User Mode Write AV vulnerability that could lead to a Denial of Service when handling JPEG files.

Understanding CVE-2018-11703

This CVE involves a vulnerability in FastStone Image Viewer version 6.2 that could be exploited by attackers.

What is CVE-2018-11703?

The vulnerability in FastStone Image Viewer version 6.2 allows attackers to trigger a User Mode Write AV by opening a malformed JPEG file, potentially leading to a Denial of Service (Access Violation) or other unspecified damage.

The Impact of CVE-2018-11703

The exploitation of this vulnerability could result in a Denial of Service (DoS) attack or other types of damage.

Technical Details of CVE-2018-11703

This section provides more technical insights into the CVE.

Vulnerability Description

FastStone Image Viewer version 6.2 is susceptible to a User Mode Write AV triggered by mishandling JPEG files, potentially leading to a Denial of Service.

Affected Systems and Versions

Product: FastStone Image Viewer
Version: 6.2

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a specially designed JPEG file to trigger the User Mode Write AV.

Mitigation and Prevention

Protecting systems from CVE-2018-11703 is crucial to prevent potential attacks.

Immediate Steps to Take

Avoid opening untrusted JPEG files using FastStone Image Viewer version 6.2.
Consider using alternative image viewing applications until a patch is available.

Long-Term Security Practices

Regularly update software to the latest versions to mitigate known vulnerabilities.
Implement robust security measures to prevent unauthorized access to systems.

Patching and Updates

Check for patches or updates from FastStone Image Viewer to address the vulnerability and apply them promptly.