CVE-2024-32614

What it actually does

The flaw triggers a segmentation fault (SEGV) during execution of H5VM_memcpyvv in H5VM.c, causing invalid memory access in vectorized copy operations within the HDF5 library.

Why it matters to the business

Applications relying on the affected library can crash or experience memory corruption, leading to unplanned downtime, potential loss of data integrity, and elevated risk of remote code execution in systems processing untrusted inputs.

How an attack unfolds

An attacker supplies specially crafted data that reaches the vulnerable memory-copy routine, forcing an out-of-bounds or invalid pointer dereference that results in a crash or arbitrary memory manipulation.

How to fix it

Upgrade dolibarr/dolibarr (GIT) to commit bb7b69ef43673ed403436eac05e0bc31d5033ff7 or later; rebuild any dependent components against a patched HDF5 library and verify the fix is present in running binaries.

How to confirm the fix worked

Confirm the running binary or library no longer contains the vulnerable H5VM_memcpyvv implementation, re-test with previously crashing inputs, and ensure the updated commit hash appears in source or build metadata.

Typical attack path

1. Identify a network-accessible service that links against the vulnerable HDF5 library
2. Craft and send input that exercises H5VM_memcpyvv with malicious parameters
3. Trigger the SEGV to achieve denial of service or leverage the memory corruption for further exploitation

How to detect it

Review application and system logs for unexpected segmentation faults originating from HDF5 memory routines; correlate crashes with inbound requests that process HDF5-formatted files or data streams.

What your security team should do

• Apply the listed commit immediately on all instances using the affected Dolibarr package
• Scan the environment for any other direct or transitive dependencies on HDF5 ≤ 1.14.3
• Add the library to the vulnerability scanning inventory and enforce automated rebuilds on dependency updates