CVE-2019-25556 in TwistedBrush Pro Studio
Summary
by MITRE • 03/21/2026
TwistedBrush Pro Studio 24.06 contains a denial of service vulnerability in the Resize Image function that allows local attackers to crash the application by supplying an excessively long buffer. Attackers can paste a malicious string into the New Width or New Height field to trigger a buffer overflow that causes the application to crash.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 03/27/2026
The vulnerability identified as CVE-2019-25556 resides within TwistedBrush Pro Studio version 24.06, a professional digital art and image editing application. This issue represents a classic buffer overflow condition that manifests specifically within the Resize Image functionality of the software. The flaw occurs when the application processes user-supplied input through the New Width or New Height fields, creating a scenario where malformed data can cause the program to behave unpredictably and ultimately terminate execution. The vulnerability is classified as a local denial of service condition, meaning that exploitation requires physical access to the target system or the ability to execute code within the application's environment.
From a technical perspective, this vulnerability demonstrates characteristics consistent with CWE-121, which describes stack-based buffer overflow conditions. The application fails to properly validate or sanitize input parameters before processing them within memory buffers. When attackers supply excessively long strings to the Resize Image function, the software attempts to allocate memory for these inputs without adequate bounds checking, resulting in memory corruption that triggers a crash. The specific nature of the vulnerability suggests that the application uses fixed-length buffers or inadequate string handling mechanisms when processing the width and height parameters, making it susceptible to overflow conditions that can be reliably triggered through crafted input sequences.
The operational impact of this vulnerability extends beyond simple application instability, as it creates a persistent threat vector for local attackers who may seek to disrupt workflow or potentially escalate their privileges within the system. The denial of service condition effectively prevents legitimate users from accessing the image editing functionality until the application is manually restarted or the system is rebooted. In professional environments where TwistedBrush Pro Studio is used for critical creative work, such disruptions can result in significant productivity losses and potential data integrity concerns. The vulnerability is particularly concerning because it requires no network connectivity or remote exploitation capabilities, making it accessible to anyone with local access to the system, including unauthorized users who may have gained physical access or administrative privileges.
Mitigation strategies for this vulnerability should focus on both immediate remediation and long-term architectural improvements. The most effective immediate solution involves applying the vendor-provided patch or upgrade to a version that addresses the buffer overflow condition in the Resize Image function. System administrators should also implement input validation measures at the application level to prevent overly long strings from being processed, including implementing maximum length restrictions on user inputs and employing proper string handling routines. From a defensive perspective, this vulnerability aligns with ATT&CK technique T1499.004, which covers network denial of service attacks, though in this case the attack vector is local rather than network-based. Organizations should also consider implementing application whitelisting policies and monitoring for unusual application crash patterns that might indicate exploitation attempts. The vulnerability serves as a reminder of the importance of proper input validation and memory management practices in preventing buffer overflow conditions that can lead to both denial of service and potential privilege escalation scenarios.