A heap-based buffer over-read in H5Z__filter_scaleoffset() in src/H5Zscaleoffset.c in HDF5 through 2.2.0 lets an attacker cause a denial of service (application crash) with a crafted HDF5 file. When the stored minimum bits equal the full precision of the datatype, the decoder copies d_nelmts * size bytes from the compressed chunk without checking that the chunk holds that many bytes. Both values come from attacker-controlled scale-offset filter parameters in the dataset's filter pipeline message.

A heap-based buffer over-read in H5Z__filter_scaleoffset() in src/H5Zscaleoffset.c in HDF5 through 2.2.0 lets an attacker cause a denial of service (application crash) with a crafted HDF5 file. When the stored minimum bits equal the full precision of the datatype, the decoder copies d_nelmts * size bytes from the compressed chunk without checking that the chunk holds that many bytes. Both values come from attacker-controlled scale-offset filter parameters in the dataset's filter pipeline message.

Affected: Ubuntu:Pro:14.04:LTS: hdf5, Ubuntu:Pro:16.04:LTS: hdf5, Ubuntu:Pro:18.04:LTS: hdf5, Ubuntu:Pro:20.04:LTS: hdf5, Ubuntu:20.04:LTS: r-bioc-rhdf5lib, Ubuntu:22.04:LTS: hdf5, Ubuntu:22.04:LTS: r-bioc-rhdf5lib, Ubuntu:24.04:LTS: hdf5, Ubuntu:24.04:LTS: r-bioc-rhdf5lib, Ubuntu:26.04:LTS: hdf5 and 1 more

(A heap-based buffer over-read in H5Z__filter_scaleoffset() in src/H5Zs ...)