Detection Guidance

This vulnerability can be detected by monitoring for crashes or segmentation faults in the DCMTK dcmqrscp tool when it receives malformed or invalid DICOM messages, especially those containing illegal odd-length text Value Representation (VR) attributes. Since the issue arises from processing such malformed DICOM datasets, detection involves capturing and analyzing network traffic for suspicious or malformed DICOM messages. You can use network packet capture tools like Wireshark or tcpdump to capture DICOM traffic on port 104 (default DICOM port) and then analyze the payload for odd-length text VR attributes or malformed datasets. Additionally, monitoring the logs of the dcmqrscp service for segmentation faults or crashes can help detect exploitation attempts. Specific commands include: 1. Capture DICOM traffic with tcpdump: tcpdump -i <interface> port 104 -w dicom_traffic.pcap 2. Analyze captured traffic with Wireshark, filtering for DICOM protocol and inspecting attribute lengths. 3. Monitor dcmqrscp logs or system logs for segmentation faults or crashes: journalctl -u dcmqrscp.service or tail -f /var/log/syslog 4. Use tools or scripts to parse DICOM files or network captures to identify odd-length text VR attributes. Since the vulnerability is triggered by illegal odd-length text VR attributes, custom scripts or tools that validate DICOM datasets for compliance can be used to detect vulnerable inputs. The best mitigation is upgrading to DCMTK version 3.7.0, which fixes the issue. [1, 2, 6]

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Compliance Impact

The provided resources do not contain information on how CVE-2025-14607 affects compliance with common standards and regulations such as GDPR or HIPAA.

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Executive Summary

This vulnerability exists in the OFFIS DCMTK software up to version 3.6.9, specifically in the function DcmByteString::makeDicomByteString within the dcmdata component. It involves manipulation that leads to memory corruption. An attacker can exploit this vulnerability remotely. Upgrading to version 3.7.0 resolves the issue.

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Impact Analysis

The vulnerability can lead to memory corruption, which may cause the affected software to behave unpredictably, potentially leading to crashes or allowing an attacker to execute arbitrary code remotely. This can compromise the confidentiality, integrity, and availability of the system using the vulnerable component.

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Mitigation Strategies

Upgrade the affected OFFIS DCMTK component to version 3.7.0, as this version contains the patch that resolves the memory corruption vulnerability in the function DcmByteString::makeDicomByteString.

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