CVE-2024-32609
📋 TL;DR
This vulnerability in the HDF5 library allows attackers to cause stack consumption (stack overflow) through the H5E_printf_stack function, potentially leading to denial of service or arbitrary code execution. It affects any application or system that uses HDF5 library versions up to 1.14.3 for reading or writing HDF5 files. This includes scientific computing applications, data analysis tools, and systems processing HDF5 data formats.
💻 Affected Systems
- HDF5 Library
- Applications using HDF5 library (e.g., scientific software, data analysis tools)
📦 What is this software?
Hdf5 by Hdfgroup
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise if the stack overflow can be leveraged to execute arbitrary code.
Likely Case
Denial of service causing application crashes or system instability when processing malicious HDF5 files.
If Mitigated
Limited impact with proper input validation and memory protection mechanisms in place.
🎯 Exploit Status
Exploitation requires crafting malicious HDF5 files that trigger the stack consumption in error handling paths.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: HDF5 1.14.4
Vendor Advisory: https://www.hdfgroup.org/2024/05/new-hdf5-cve-issues-fixed-in-1-14-4/
Restart Required: Yes
Instructions:
1. Download HDF5 1.14.4 or later from official HDF Group website. 2. Uninstall vulnerable HDF5 versions. 3. Install patched version. 4. Recompile applications using HDF5 if statically linked. 5. Restart affected services.
🔧 Temporary Workarounds
Input Validation
allImplement strict validation of HDF5 files before processing
Memory Protection
linuxEnable stack protection mechanisms (ASLR, stack canaries) at OS/application level
sudo sysctl -w kernel.randomize_va_space=2
🧯 If You Can't Patch
- Isolate systems processing HDF5 files from untrusted networks
- Implement application allowlisting to restrict HDF5 file processing to trusted sources only
🔍 How to Verify
Check if Vulnerable:
Check HDF5 library version: h5dump --version or check installed packagesCheck Version:
h5dump --version 2>/dev/null || dpkg -l | grep libhdf5 || rpm -qa | grep hdf5Verify Fix Applied:
Confirm HDF5 version is 1.14.4 or higher: h5dump --version | grep -E '1\.1[4-9]\.[4-9]'📡 Detection & Monitoring
Log Indicators:
- Application crashes with stack overflow errors
- HDF5 library error messages indicating memory issues
- Abnormal termination of HDF5 processing applications
Network Indicators:
- Unusual HDF5 file transfers to sensitive systems
- Multiple failed HDF5 file processing attempts
SIEM Query:
source="application_logs" AND ("stack overflow" OR "H5E_printf_stack" OR "HDF5 error")