CVE-2018-11704 : Exploit Details and Defense Strategies

FastStone Image Viewer 6.2 is vulnerable to a User Mode Write AV when opening a malformed JPEG file in FSViewer.exe, potentially leading to DoS attacks or other consequences.

Understanding CVE-2018-11704

FastStone Image Viewer 6.2 vulnerability with potential DoS impact.

What is CVE-2018-11704?

This CVE describes a vulnerability in FastStone Image Viewer 6.2 that allows attackers to trigger a User Mode Write AV by exploiting a malformed JPEG file.

The Impact of CVE-2018-11704

Attackers can exploit this vulnerability to cause a Denial of Service (DoS) attack or potentially achieve other malicious outcomes.

Technical Details of CVE-2018-11704

Details of the vulnerability in FastStone Image Viewer 6.2.

Vulnerability Description

FastStone Image Viewer 6.2 experiences a User Mode Write AV at 0x00402d7d when a user opens a malformed JPEG file in FSViewer.exe.

Affected Systems and Versions

Product: FastStone Image Viewer 6.2
Vendor: FastStone
Versions affected: All versions

Exploitation Mechanism

Attackers exploit a malformed JPEG file to trigger the vulnerability, potentially leading to DoS or other consequences.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2018-11704.

Immediate Steps to Take

Avoid opening untrusted or suspicious JPEG files in FastStone Image Viewer 6.2.
Consider using alternative image viewing software until a patch is available.

Long-Term Security Practices

Keep software and systems updated to prevent known vulnerabilities.
Implement network security measures to detect and block malicious activities.

Patching and Updates

Monitor for security updates from FastStone and apply patches promptly to address the vulnerability.