Orthanc DICOM Server
Heap Buffer Overflow in DICOM Image Decoder via VR UL Dimensions
The DICOM image decoder performs frame size calculations using 32-bit arithmetic and fails to validate dimension tags that are encoded with VR UL instead of VR US.
This advisory contains limited information during coordinated disclosure. Please check back later for full details.
Description
A malicious DICOM file with oversized image dimensions can trigger an integer overflow that leads to a heap buffer overflow during image processing.
Impact
- Heap buffer overflow during image processing.
Mitigation
Update Orthanc to version 1.12.11 or later.
References
How We Can Help
Who We Are
The security researchers behind this advisory.
Dr. rer. nat. Simon Weber
Senior Pentester & MedSec Researcher
I evaluate your SaMD with the same industry-defining security insight I contributed to the BAK MV for the revision of the B3S standard.
- PhD on Hospital Cybersecurity
- Critical vulnerabilities found in hospital systems
- Alumni of THB MedSec Research Group
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Dipl.-Inf. Volker Schönefeld
Senior Application Security Expert
As a former CTO and developer turned pentester, I work alongside your team to uncover vulnerabilities and find solutions that fit your architecture.
- 20+ years as CTO, 50M+ app downloads
- Architected and secured large-scale IoT fleets
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- gematik Security Hero
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