DCMTK

The dcmnet module may produce a segmentation fault due to a de-referenced NULL pointer while processing an invalid incoming DIMSE message.
Two places in the code are affected. The bugs can be reproduced as follows:

# Start the server
DCMDICTPATH=dicom.dic dcmrecv --config-file storescp.cfg Default -d 6789

# Trigger the bug
cat <input-hash> | nc 127.0.0.1 -p 6789 

All required files are attached below.

Reported 2024-03-14 by Nils Bars <nils.bars@rub.de>.