A vulnerability was found in HDF5 up to 1.14.6. It has been rated as problematic. Affected by this issue is the function H5FL__blk_gc_list of the file src/H5FL.c. The manipulation of the argument H5FL_blk_head_t leads to use after free. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://vuldb.com/?id.301886 | vdb entry third party advisory technical description |
| https://vuldb.com/?ctiid.301886 | permissions required signature vdb entry |
| https://vuldb.com/?submit.520404 | vdb entry third party advisory |
| https://github.com/HDFGroup/hdf5/issues/5376 | vendor advisory issue tracking exploit |