PT-2026-35474 · Julia · Openexr Jll
Publicado
2026-04-17
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Atualizado
2026-04-17
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OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.2.0 through 3.2.4, 3.3.0 through 3.3.5, and 3.4.0 through 3.4.2, there is a use-after-free in PyObject StealAttrString of pyOpenEXR old.cpp. The legacy adapter defines PyObject StealAttrString that calls PyObject GetAttrString to obtain a new reference, immediately decrefs it, and returns the pointer. Callers then pass this dangling pointer to APIs like PyLong AsLong/PyFloat AsDouble, resulting in a use-after-free. This is invoked in multiple places (e.g., reading PixelType.v, Box2i, V2f, etc.) Versions 3.2.5, 3.3.6, and 3.4.3 fix the issue.
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