CVE-2019-25558: Selfie Studio 2.17 DoS Vulnerability

CVE-2019-25558 Overview

CVE-2019-25558 is a denial of service vulnerability affecting Selfie Studio version 2.17. The vulnerability exists in the Resize Image function, which fails to properly validate input length when processing the New Width and New Height fields. A local attacker can exploit this flaw by supplying an excessively long buffer, causing the application to crash due to a buffer overflow condition (CWE-787: Out-of-bounds Write).

Critical Impact

Local attackers can crash the Selfie Studio application by pasting a large string of characters into the New Width or New Height input fields, leading to denial of service and potential data loss if unsaved work is in progress.

Affected Products

• Selfie Studio 2.17
• Pixarra Selfie Studio (other versions may also be affected)

Discovery Timeline

• 2026-03-21 - CVE CVE-2019-25558 published to NVD
• 2026-03-23 - Last updated in NVD database

Technical Details for CVE-2019-25558

Vulnerability Analysis

This vulnerability is classified as an Out-of-bounds Write (CWE-787), which occurs when the application writes data past the end of a buffer. In this case, the Resize Image function in Selfie Studio 2.17 does not properly validate the length of user input before copying it into a fixed-size buffer. When an attacker provides an excessively long string in the New Width or New Height field, the application attempts to process this input without adequate bounds checking, resulting in memory corruption and application crash.

The attack requires local access to the system where Selfie Studio is installed. While this limits the attack surface, it still poses a significant risk in multi-user environments or scenarios where malicious input could be prepared and delivered through social engineering.

Root Cause

The root cause of this vulnerability is improper input validation in the Resize Image functionality. The application fails to implement adequate boundary checks on user-supplied input for the image dimension fields. When processing the resize parameters, the application copies the input string into a fixed-size memory buffer without verifying that the input length does not exceed the buffer capacity, leading to a classic buffer overflow condition.

Attack Vector

The attack vector is local and requires user interaction with the application interface. An attacker can exploit this vulnerability by:

1. Opening the Selfie Studio application
2. Navigating to the Resize Image function
3. Pasting an excessively long string of characters into the New Width or New Height input field
4. The application fails to handle the oversized input, triggering a buffer overflow that crashes the application

The vulnerability has been documented in Exploit-DB #46842, which provides details on the exploitation technique. Additional information is available in the VulnCheck Advisory.

Detection Methods for CVE-2019-25558

Indicators of Compromise

• Unexpected application crashes when using the Resize Image function in Selfie Studio
• Windows Event Log entries showing application faults with Selfie Studio as the faulting application
• Crash dump files in the application directory or Windows temp folders
• User reports of data loss due to sudden application termination

Detection Strategies

• Monitor for repeated Selfie Studio application crashes using Windows Event Viewer or endpoint detection tools
• Implement application monitoring to detect abnormal termination events for Selfie Studio processes
• Use SentinelOne Singularity platform to detect and alert on suspicious application behavior patterns
• Review system logs for crash patterns that may indicate attempted exploitation

Monitoring Recommendations

• Enable application crash monitoring through Windows Error Reporting
• Configure SentinelOne agents to monitor for buffer overflow indicators and application crash patterns
• Implement user education programs to recognize social engineering attempts that may leverage this vulnerability
• Maintain an inventory of systems with Selfie Studio installed to assess exposure

How to Mitigate CVE-2019-25558

Immediate Actions Required

• Identify all systems with Selfie Studio 2.17 installed and assess business necessity
• Consider removing or disabling Selfie Studio on systems where it is not required
• Implement application control policies to prevent unauthorized execution
• Educate users about the risk of processing untrusted or excessively large input values

Patch Information

At the time of this writing, no official patch information has been published by Pixarra. Users are advised to check the Pixarra Official Website for any available updates or security advisories. Consider upgrading to a newer version if one becomes available that addresses this vulnerability.

Workarounds

• Avoid using the Resize Image function with untrusted or unusually long input values
• Restrict access to systems running Selfie Studio to trusted users only
• Consider using alternative image editing software that has undergone security review
• Implement application whitelisting to control which applications can run on sensitive systems
• Use SentinelOne Singularity Endpoint to monitor and protect against exploitation attempts