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Bug #1187

closed

dcmpschk may crash when reading an invalid DICOM file

Added by Marco Eichelberg 1 day ago. Updated 1 day ago.

Status:
Closed
Priority:
Normal
Assignee:
Marco Eichelberg
Category:
Application
Target version:
3.7.1
Start date:
2026-01-12
Due date:
% Done:

100%

Estimated time:
0:00 h
Module:
Operating System:
Compiler:

Description

The dcmpschk tool (a grayscale softcopy presentation state syntax checker) may dereference NULL, leading to a segmentation fault, when attempting to parse a specially-crafted DICOM file.

Reported 2026-01-02 by Naavin <>, together with sample file and fix.

Files

Download all files
crash.dcm.bz2 (3.46 KB) crash.dcm.bz2 Sample file (warning: decompresses to 4 GByte) Marco Eichelberg, 2026-01-12 16:14
generate_crash_dcm.py (3.32 KB) generate_crash_dcm.py Python script that creates the sample file Marco Eichelberg, 2026-01-12 16:15
fix-dcmpschk-crash.patch (830 Bytes) fix-dcmpschk-crash.patch Patch that fixes the issue Marco Eichelberg, 2026-01-12 16:15
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