Description
A vulnerability has been found in HDF5 up to 1.14.6 and classified as problematic. This vulnerability affects the function H5MM_realloc of the file src/H5MM.c. The manipulation of the argument mem leads to double free. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | HDF5 | 1.14.0, 1.14.1, 1.14.2, 1.14.3, 1.14.4, 1.14.5, 1.14.6 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | hdf5 | 2.1.0+repack-1 | — |
| Debian 13 | hdf5 | No fix yet | — |
| Debian 12 | hdf5 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | hdf5 | No fix yet | — |
| Ubuntu 26.04 LTS | hdf5 | No fix yet | — |
| Ubuntu 25.10 | hdf5 | No fix yet | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | hdf5 | 1.14.6-1 | — |
| Azure Linux 2 (CBL-Mariner) | hdf5 | 1.14.6-1 | — |
References
- VDB-301900 | HDF5 H5MM.c H5MM_realloc double free vdb-entry technical-description
- VDB-301900 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- Submit #521193 | https://github.com/HDFGroup/hdf5 HDF5 1.14.6 Double Free third-party-advisory
- https://github.com/HDFGroup/hdf5/issues/5383 exploit issue-tracking