CVE-2019-25554 Overview
CVE-2019-25554 is a denial of service vulnerability affecting Tomabo MP4 Converter version 3.25.22. This buffer overflow vulnerability allows local attackers to crash the application by supplying an excessively long string in the Name field. The vulnerability is triggered when an attacker pastes a large payload into the Name parameter when adding a preset in the Video/Audio Formats options, causing the application to crash when the "Reset All" button is clicked.
Critical Impact
Local attackers can repeatedly crash the Tomabo MP4 Converter application, disrupting user workflows and potentially causing data loss during active conversion processes.
Affected Products
- Tomabo MP4 Converter version 3.25.22
Discovery Timeline
- 2026-03-21 - CVE CVE-2019-25554 published to NVD
- 2026-03-23 - Last updated in NVD database
Technical Details for CVE-2019-25554
Vulnerability Analysis
This vulnerability is classified as CWE-787 (Out-of-bounds Write), indicating that the application writes data past the end or before the beginning of an intended buffer. The vulnerability exists in the preset management functionality of Tomabo MP4 Converter, specifically within the Video/Audio Formats configuration options.
The application fails to properly validate the length of user-supplied input in the Name field when creating or modifying presets. When an attacker supplies an excessively long string, the application attempts to store this data without adequate boundary checking, leading to a buffer overflow condition that corrupts memory and causes the application to crash.
Root Cause
The root cause of this vulnerability is improper input validation in the Name field parameter handling. The application does not enforce a maximum length restriction on the Name field input, allowing arbitrarily long strings to be processed. When the "Reset All" function is triggered, the oversized buffer causes memory corruption, resulting in an unhandled exception that terminates the application.
Attack Vector
The attack vector is local, requiring an attacker to have direct access to the system running Tomabo MP4 Converter. The exploitation process involves:
- Opening the Tomabo MP4 Converter application
- Navigating to the Video/Audio Formats options
- Adding a new preset
- Pasting an excessively long string into the Name field
- Clicking the "Reset All" button to trigger the crash
The vulnerability requires user interaction (clicking the Reset All button) to be fully triggered. While this limits the attack surface, the vulnerability can still be exploited in scenarios where attackers have local access to shared systems or can social engineer users into performing the necessary actions.
Detection Methods for CVE-2019-25554
Indicators of Compromise
- Unexpected crashes of the Tomabo MP4 Converter.exe process
- Windows Error Reporting events indicating access violations or buffer overflows in the Tomabo MP4 Converter application
- Crash dump files generated by the application containing memory corruption signatures
Detection Strategies
- Monitor for repeated application crashes of Tomabo MP4 Converter through Windows Event Logs
- Implement endpoint detection rules to alert on abnormal process termination patterns
- Deploy application crash monitoring solutions to detect denial of service attempts against desktop applications
Monitoring Recommendations
- Enable Windows Error Reporting and review crash reports for Tomabo MP4 Converter
- Configure SentinelOne endpoint agents to monitor for suspicious application behavior and memory corruption events
- Implement user activity logging to detect potential abuse of the preset configuration interface
How to Mitigate CVE-2019-25554
Immediate Actions Required
- Review the need for Tomabo MP4 Converter in your environment and consider alternative software if security updates are unavailable
- Restrict local access to systems running the vulnerable application to trusted users only
- Implement application allowlisting policies to control which users can access the software
- Monitor for unusual application behavior or repeated crashes
Patch Information
No vendor patch information is currently available for this vulnerability. Users should check the Tomabo Official Website for any security updates or newer versions that may address this issue. Additional technical details can be found in the Exploit-DB #46848 entry and the VulnCheck Advisory for Tomabo.
Workarounds
- Avoid using the preset functionality in Video/Audio Formats options if not essential to your workflow
- Consider removing or replacing Tomabo MP4 Converter with alternative software that receives regular security updates
- Implement strict access controls to limit who can use the application on shared systems
- Back up conversion work frequently to minimize data loss from potential crashes
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
