Description
An out-of-bounds write vulnerability exists in the Grassroots DICOM library (GDCM). The issue is triggered during parsing of a malformed DICOM file containing encapsulated PixelData fragments (compressed image data stored as multiple fragments). This vulnerability leads to a segmentation fault caused by an out-of-bounds memory access due to unsigned integer underflow in buffer indexing. It is exploitable via file input, simply opening a crafted malicious DICOM file is sufficient to trigger the crash, resulting in a denial-of-service condition.
Problem types
Product status
Any version
Any version
Any version
Credits
Morgen Malinoski reported this vulnerability to CISA.
References
github.com/malaterre/GDCM/releases/tag/v3.2.2
www.cisa.gov/...vents/ics-medical-advisories/icsma-25-345-01
github.com/.../csaf_files/OT/white/2025/icsma-25-345-01.json
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