Description
CryptX for Perl before version 0.065 contains a dependency that may be susceptible to malformed unicode. CryptX embeds the tomcrypt library. The versions of that library in CryptX before 0.065 may be susceptible to CVE-2019-17362.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-18140
1. Vulnerability Assessment and Severity Evaluation
The vulnerability identified in EUVD-2025-18140 pertains to CryptX for Perl versions before 0.065. Specifically, it involves a dependency on the tomcrypt library, which is susceptible to malformed Unicode handling as described in CVE-2019-17362. The CVSS Base Score of 9.8 indicates a critical severity level. The scoring vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) highlights the following characteristics:
- Attack Vector (AV:N): Network, meaning the vulnerability can be exploited remotely.
- Attack Complexity (AC:L): Low, indicating that the attack is relatively straightforward to execute.
- Privileges Required (PR:N): None, meaning no special privileges are needed to exploit the vulnerability.
- User Interaction (UI:N): None, indicating that no user interaction is required for the attack to succeed.
- Scope (S:U): Unchanged, meaning the vulnerability does not affect other security authorities.
- Confidentiality (C:H): High impact on confidentiality.
- Integrity (I:H): High impact on integrity.
- Availability (A:H): High impact on availability.
2. Potential Attack Vectors and Exploitation Methods
Given the nature of the vulnerability, potential attack vectors include:
- Remote Code Execution (RCE): An attacker could send specially crafted Unicode strings to trigger the vulnerability, leading to arbitrary code execution.
- Denial of Service (DoS): Malformed Unicode input could cause the application to crash or become unresponsive, leading to a denial of service.
- Data Corruption: The vulnerability could be exploited to corrupt data, leading to integrity issues.
Exploitation methods might involve:
- Network-based Attacks: Sending malformed Unicode data over the network to a vulnerable application.
- Web-based Attacks: Exploiting web applications that use CryptX for Perl to handle user input.
3. Affected Systems and Software Versions
The vulnerability affects:
- CryptX for Perl: Versions before 0.065.
- tomcrypt Library: Versions embedded in CryptX before 0.065.
Any system or application that uses these versions of CryptX for Perl is potentially at risk.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Update to the Latest Version: Upgrade CryptX for Perl to version 0.065 or later, which includes the patched version of the tomcrypt library.
- Input Validation: Implement robust input validation to filter out malformed Unicode strings.
- Network Security: Use firewalls and intrusion detection systems to monitor and block suspicious network traffic.
- Regular Patching: Ensure that all software dependencies are regularly updated and patched.
- Security Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security issues.
5. Impact on European Cybersecurity Landscape
The high severity of this vulnerability poses a significant risk to the European cybersecurity landscape. Organizations and individuals using the affected versions of CryptX for Perl are at risk of data breaches, service disruptions, and potential financial losses. The widespread use of Perl in various applications, including web development and system administration, amplifies the potential impact.
6. Technical Details for Security Professionals
For security professionals, the following technical details are pertinent:
- CVE-2019-17362: The underlying vulnerability in the tomcrypt library that affects Unicode handling.
- References:
- Aliases: CVE-2025-40912, GHSA-w3qg-5chj-8g9g
- Assigner: CPANSec
- ENISA ID Product: CryptX versions 0.002 to 0.065
- ENISA ID Vendor: MIK
Security professionals should prioritize the identification and remediation of this vulnerability in their environments. Regular monitoring and updating of software dependencies are crucial to maintaining a secure infrastructure.
Conclusion
EUVD-2025-18140 highlights a critical vulnerability in CryptX for Perl that requires immediate attention. By understanding the attack vectors, affected systems, and recommended mitigation strategies, organizations can effectively protect themselves against potential exploits. The European cybersecurity landscape must remain vigilant and proactive in addressing such high-severity vulnerabilities to ensure the integrity and security of digital assets.