CVE-2019-25624 in Liquid Studio
Summary
by MITRE • 03/23/2026
Liquid Studio 2.17 contains a denial of service vulnerability that allows local attackers to crash the application by providing malformed input through the keyboard interface. Attackers can trigger the vulnerability by entering arbitrary characters during application runtime, causing the application to become unresponsive or terminate abnormally.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 03/27/2026
The vulnerability identified as CVE-2019-25624 affects Liquid Studio version 2.17 and represents a denial of service condition that can be exploited by local attackers through keyboard interface manipulation. This flaw resides within the application's input handling mechanisms and demonstrates a critical weakness in the software's ability to process malformed data without proper validation and error handling. The vulnerability specifically targets the keyboard input processing subsystem, where the application fails to adequately sanitize or validate character sequences entered during runtime. When attackers provide arbitrary characters through the keyboard interface, the application's input processing logic becomes overwhelmed and unable to continue normal operations, resulting in application instability and potential termination.
This vulnerability falls under the category of improper input validation as classified by CWE-20, which specifically addresses weaknesses in the validation of input data. The flaw represents a classic example of a buffer over-read or memory corruption issue that can occur when applications fail to properly handle unexpected input sequences. The attack surface is limited to local users who have access to the application's keyboard interface, but this restriction does not diminish the severity of the impact. The vulnerability creates an opportunity for attackers to disrupt service availability, which aligns with the ATT&CK technique T1499.002 - Endpoint Denial of Service, where adversaries target application stability to prevent normal operations. The specific nature of the vulnerability suggests that the application's keyboard event handlers lack proper bounds checking and input sanitization, making it susceptible to malformed character sequences that can trigger abnormal program termination.
The operational impact of this vulnerability extends beyond simple application crashes, as it can lead to complete service disruption for legitimate users who rely on Liquid Studio for their workflow. Local attackers can repeatedly exploit this vulnerability to maintain persistent denial of service conditions, potentially causing system instability and requiring manual intervention to restore normal operations. The vulnerability affects the application's availability and reliability, which can be particularly problematic in professional environments where software stability is critical for business operations. When the application becomes unresponsive or terminates abnormally, users lose access to their work and may experience data loss or corruption, as the application may not have properly saved their progress before crashing. The impact is compounded by the fact that such vulnerabilities are often difficult to detect during routine testing, as they may only manifest under specific conditions involving malformed input sequences.
Mitigation strategies for this vulnerability should focus on implementing robust input validation and error handling mechanisms within the keyboard interface processing code. Software developers should ensure that all input received through keyboard events undergoes proper sanitization and bounds checking before being processed by the application's core logic. This includes implementing defensive programming practices such as input length validation, character set restrictions, and proper exception handling for malformed inputs. The application should be designed to gracefully handle unexpected input sequences by either rejecting them or converting them to safe equivalents rather than allowing them to propagate through the system. System administrators should consider implementing monitoring and alerting mechanisms to detect unusual application behavior that may indicate exploitation attempts. Additionally, regular security updates and patches should be applied to ensure that known vulnerabilities are addressed promptly. The vulnerability also highlights the importance of secure coding practices and input validation as emphasized in the OWASP Top Ten and NIST guidelines for secure software development, where inadequate input validation consistently ranks among the most critical security weaknesses in application code.