This indicates an attack attempt to exploit a Buffer Overflow vulnerability in ConQuest DICOM Server.
The vulnerability is due to an improper boundary check condition in the application when handling a malformed ACSE data structure. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application, via a crafted client request.
ConQuest DICOM Server 1.4.17d
ConQuest DICOM Server 1.4.19beta3a
ConQuest DICOM Server 1.4.19beta3b
System Compromise: Remote attackers can gain control of vulnerable systems.
Currently we are unaware of any vendor supplied patch or updates available for this issue.