| Título | DCMTK 3.7.0 and below Heap-based Buffer Overflow |
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| Descripción | A heap buffer overflow exists in XMLNode::parseFile() in ofstd/libsrc/ofxml.cc. When the function is called with a FIFO (named pipe) as input — which is a supported and documented use case via cda2dcm — the ftell() call returns -1 to signal an error. The code does not check for this error condition (it only checks for l == 0), causing malloc(3) to be called followed by fread() with a size_t-casted -1 value, resulting in an attempt to read up to SIZE_MAX bytes into a 3-byte heap buffer.
CWE: CWE-122 (Heap-based Buffer Overflow)
CVSS (estimated): 8.1 HIGH — AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
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| Fuente | ⚠️ https://medium.com/@faboherrera.fabo/dcmtk-vulnerability-report-201afc687790 |
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| Usuario | FaboHerrrera (UID 98477) |
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| Sumisión | 2026-05-23 23:44 (hace 4 meses) |
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| Moderación | 2026-06-21 06:12 (28 days later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 372599 [OFFIS DCMTK hasta 3.7.0 ofstd/libsrc/ofxml.cc XMLNode::parseFile desbordamiento de búfer] |
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| Puntos | 20 |
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