NULL pointer dereference in H5Pget_fill_value in HDF5 before 2.1.1 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.
| Version | Type | Source | Base | Exp | Imp |
|---|---|---|---|---|---|
| 4.0 | Primary | cve.org | 8.2 | — | — |
| 4.0 | Secondary | NVD | 8.2 | — | — |
| 4.0 | Secondary | ENISA EUVD | 8.2 | — | — |