MedDream PACS Server DICOM File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of MedDream PACS Server. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the parsing of DICOM files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account.

Additional Details

Fixed in version 7.3.5.860

Disclosure Timeline

• 2024-12-10 - Vulnerability reported to vendor
• 2025-04-09 - Coordinated public release of advisory
• 2025-04-22 - Advisory Updated

Credit

Chizuru Toyama of TXOne Networks

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