Orthanc DICOM Server
Heap Buffer Overflow in DICOM Image Decoder (Palette Color Decode)
The palette color image decoder performs pixel size validation and buffer allocation using 32-bit arithmetic.
This advisory contains limited information during coordinated disclosure. Please check back later for full details.
Description
The 32-bit multiplication used for width and height can overflow, causing buffer size validation to pass incorrectly. This results in an undersized allocation and out-of-bounds read and write during palette lookup operations.
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.
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Dipl.-Inf. Volker Schönefeld
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As a former CTO and developer turned pentester, I work alongside your team to uncover vulnerabilities and find solutions that fit your architecture.
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