A heap-based buffer over-read in H5Zfilterscaleoffset() 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 dnelmts 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-use-after-free vulnerability exists in H5Tconvff() in src/H5Tconv.c in HDF5 before 1.14.2. When converting a compound datatype containing floating-point members during a dataset read, a temporary buffer allocated with calloc() is freed and subsequently read from within the same conversion routine. An attacker who can supply a crafted HDF5 file containing a specially constructed compound datatype can trigger the use-after-free when the file is parsed by an application that reads the affected dataset, such as h5dump. This can result in a crash and, depending on heap layout and allocator behavior, may be exploitable for further memory corruption up to remote code execution.

A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5FSsectlinksize of the file src/H5FSsection.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnerability affects the function H5Ofsinfoencode of the file /src/H5Ofsinfo.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

A vulnerability was found in HDF5 up to 1.14.6. It has been rated as critical. Affected by this issue is the function H5FLblkgclist of the file src/H5FL.c. The manipulation of the argument H5FLblkheadt leads to use after free. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.

A vulnerability was found in HDF5 1.14.6 and classified as critical. This issue affects the function H5MMstrndup of the component Metadata Attribute Decoder. The manipulation leads to heap-based buffer overflow. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The vendor plans to fix this issue in an upcoming release.

HDF5 Library through 1.14.3 contains a heap-based buffer over-read in the function H5HLfldeserialize in H5HLcache.c, a different vulnerability than CVE-2024-32612.

HDF5 Library through 1.14.3 has a SEGV in H5Tclosereal in H5T.c, resulting in a corrupted instruction pointer.

HDF5 Library through 1.14.3 contains a heap-based buffer over-read in H5HLfldeserialize in H5HLcache.c resulting in the corruption of the instruction pointer a different vulnerability than CVE-2024-32613.