Stack-based buffer overflow in the parsePresentationContext function in storescp in DICOM dcmtk-3.6.0 and earlier allows remote attackers to cause a denial of service (segmentation fault) via a long string sent to TCP port 4242.
https://bugzilla.redhat.com/show_bug.cgi?id=1405919
http://www.securityfocus.com/bid/94951