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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Grassroots DICOM (GDCM)
Default version status: unaffected
0 to ≤ 3.0.24affected
NumFocus SimpleITK
Default version status: unaffected
0 to ≤ 2.5.2affected
medInria medInria
Default version status: unaffected
0 to ≤ 4.0affected
References
- https://github.com/malaterre/GDCM/releases/tag/v3.2.2 ↗
- https://www.cisa.gov/news-events/ics-medical-advisories/icsma-25-345-01 ↗
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2025/icsma-25-345-01.json ↗
- https://github.com/malaterre/GDCM/commit/5829c95c8ac3afa9a3a3413675e948959c28a789 ↗