This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-19024 →

DEBIAN-CVE-2026-19024

NULL pointer dereference in H5Pget_fill_value in HDF5 before 2.3.0 allows attackers to cause a denial of service via a dataset whose version 1 or 2 fi...

Original description

The description as published by the source.

NULL pointer dereference in H5Pget_fill_value in HDF5 before 2.3.0 allows attackers to cause a denial of service via a dataset whose version 1 or 2 fill value message has the "defined" flag set together with a negative size field, which is not normalized to the library's "undefined" sentinel and reaches H5T_path_find with a NULL datatype.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 hdf5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 hdf5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 hdf5

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

References

advisory security-tracker.debian.org