CVE-2026-19023

Untrusted pointer dereference in the render_bin_output function in the h5dump tool in HDF5 before 2.3.0 allows attackers to cause a denial of service via a variable-length string dataset with more than one element dumped in binary mode, which corrupts the per-element stride calculation and causes subsequent elements to be read from a misaligned offset and dereferenced as a pointer.

CVSS

No CVSS.

References

Link	Resource
https://github.com/HDFGroup/hdf5/issues/6486
https://github.com/HDFGroup/hdf5/issues/6486

Configurations

No configuration.

History

23 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Desreferencia de puntero no confiable en la función render_bin_output en la herramienta h5dump en HDF5 anterior a 2.1.1 permite a los atacantes causar una denegación de servicio a través de un conjunto de datos de cadena de longitud variable con más de un elemento volcado en modo binario, lo que corrompe el cálculo del paso por elemento y hace que los elementos subsiguientes se lean desde un desplazamiento desalineado y se desreferencien como un puntero.

Information

Published : 2026-08-05 23:16

Updated : 2026-10-23 21:10

NVD link : CVE-2026-19023

Mitre link : CVE-2026-19023

CVE.ORG link : CVE-2026-19023

JSON object : View

Products Affected

No product.

CWE

CWE-822

Untrusted Pointer Dereference

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