CVE-2018-25227 Overview
CVE-2018-25227 is a denial of service vulnerability affecting Valentina Studio version 9.0.4. The vulnerability allows local attackers to crash the application by supplying an excessively long string in the Host field during server connection attempts. By pasting a 256-byte buffer of repeated characters into the Host parameter, an attacker can trigger an application crash, resulting in denial of service conditions for legitimate users.
Critical Impact
Local attackers can cause complete application crashes in Valentina Studio 9.0.4 by exploiting improper input validation in the Host field, disrupting database management operations.
Affected Products
- Valentina Studio 9.0.4
Discovery Timeline
- 2026-03-30 - CVE CVE-2018-25227 published to NVD
- 2026-03-30 - Last updated in NVD database
Technical Details for CVE-2018-25227
Vulnerability Analysis
This vulnerability is classified under CWE-466, which relates to issues with improper handling of return values or windowing operations. The core issue stems from the application's failure to properly validate and sanitize user-supplied input in the Host field parameter. When a user attempts to connect to a server and provides an excessively long hostname string, the application does not perform adequate boundary checks before processing the input.
The vulnerability requires local access to exploit, meaning an attacker would need direct access to a system running Valentina Studio. While this limits the attack surface compared to remotely exploitable vulnerabilities, it still poses a significant risk in shared computing environments or scenarios where malicious insiders could disrupt database management operations.
Root Cause
The root cause of this vulnerability lies in insufficient input validation within Valentina Studio's server connection functionality. The Host field parameter does not enforce proper length restrictions or boundary checks, allowing users to input strings that exceed expected buffer sizes. When a 256-byte string of repeated characters is pasted into the Host field, the application fails to handle this oversized input gracefully, resulting in a crash condition.
Attack Vector
The attack vector for CVE-2018-25227 is local, requiring an attacker to have access to a system where Valentina Studio 9.0.4 is installed. Exploitation involves the following sequence:
- The attacker opens Valentina Studio 9.0.4
- The attacker navigates to the server connection dialog
- The attacker pastes a 256-byte buffer of repeated characters into the Host field
- Upon attempting to establish the connection, the application crashes
The vulnerability does not require authentication or special privileges to exploit beyond having access to run the application. No user interaction beyond the attacker's own actions is required.
A proof-of-concept exploit has been documented and is available through Exploit-DB #46421. Additional technical details can be found in the VulnCheck Advisory on Valentina Studio.
Detection Methods for CVE-2018-25227
Indicators of Compromise
- Repeated application crashes of Valentina Studio processes
- Crash dump files indicating exceptions in connection handling routines
- Unusual patterns of application restarts in system logs
- User activity logs showing abnormally long hostname entries in connection attempts
Detection Strategies
- Monitor for Valentina Studio application crashes and exceptions through Windows Event Logs or macOS crash reports
- Implement application-level logging to capture connection attempts with unusually long Host field values
- Deploy endpoint detection solutions to identify repeated application crash patterns indicative of denial of service attempts
- Review application crash dumps for stack traces related to string handling or buffer operations
Monitoring Recommendations
- Configure crash reporting and telemetry to alert on Valentina Studio process terminations
- Establish baseline metrics for normal application behavior to detect anomalous crash patterns
- Implement file integrity monitoring on Valentina Studio installation directories
- Monitor system resource usage for patterns consistent with repeated crash/restart cycles
How to Mitigate CVE-2018-25227
Immediate Actions Required
- Upgrade Valentina Studio to a version newer than 9.0.4 that addresses this vulnerability
- Restrict access to systems running vulnerable versions of Valentina Studio to trusted users only
- Monitor for application crashes and investigate any unusual patterns
- Consider deploying application whitelisting to prevent unauthorized users from running Valentina Studio
Patch Information
Users should upgrade to a patched version of Valentina Studio. The latest versions can be obtained from the Valentina DB Main Page or through the Valentina Database SDK Download page. Check vendor release notes for specific version information addressing this vulnerability.
Workarounds
- Limit access to Valentina Studio installations to authorized personnel only
- Implement strict access controls on workstations running the vulnerable software
- Use network segmentation to isolate systems running Valentina Studio from untrusted users
- Deploy endpoint protection solutions capable of detecting and blocking exploitation attempts
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
