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Critical 9.8
Heap Buffer Overflow in DICOM Image Decoder via VR UL Dimensions
A heap buffer overflow vulnerability exists in the DICOM image decoder. Dimension fields are encoded using Value Representation (VR) Unsigned Long (UL), instead of the expected VR Unsigned Short (US), which allows extremely large dimensions to be processed. T…
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Critical 9.8
Heap Buffer Overflow in DICOM Image Decoder (Palette Color Decode)
A heap buffer overflow vulnerability exists during the decoding of `PALETTE COLOR` DICOM images. Pixel length validation uses 32-bit multiplication for width and height calculations. If these values overflow, the validation check incorrectly succeeds, allowin…
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Critical 9.1
Out-of-Bounds Read in DicomImageDecoder (DecodeLookupTable)
An out-of-bounds read vulnerability exists in the `DecodeLookupTable` function within `DicomImageDecoder.cpp`. The lookup-table decoding logic used for `PALETTE COLOR` images does not validate pixel indices against the lookup table size. Crafted images contai…
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Critical 9.8
Orthanc Server Missing Authentication for Critical Function
Orthanc server prior to version 1.5.8 does not enable basic authentication by default when remote access is enabled. This could result in unauthorized access by an attacker.