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Bug #1225

closed

json2dcm readValue JSON SQ unbounded recursion

Added by Marco Eichelberg 3 days ago. Updated about 4 hours ago.

Status:
Closed
Priority:
Normal
Assignee:
Marco Eichelberg
Category:
Library and Apps
Target version:
-
Start date:
2026-06-16
Due date:
% Done:

100%

Estimated time:
1:00 h
Module:
dcmdata
Operating System:
Compiler:

Description

DcmJsonReaderBase::readValue() recurses via DcmJsonReaderBase::parseSequence() on SQ JSON value items with no depth check. At 15,000 nesting levels the 8 MB default stack is exhausted.

Files

poc_008_deep.json (513 KB) poc_008_deep.json PoC file that causes a segmentation fault when processed with json2dcm Marco Eichelberg, 2026-06-16 18:22
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