matio (aka MAT File I/O Library) 1.5.20 and 1.5.21 has a heap-based buffer overflow in H5MM_memcpy (called from H5MM_malloc and H5C_load_entry), related to use of HDF5 1.12.0.Referenceshttps://github.com/google/oss-fuzz-vulns/blob/main/vulns/matio/OSV-2021-440.yamlhttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31265https://github.com/google/oss-fuzz-vulns/commit/37b781ace1b4228fc36483bb7e30c72ea9d4c3d6https://github.com/HDFGroup/hdf5/issues/272https://github.com/google/oss-fuzz/issues/4999
