CVE-2024-33876
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedHDF5 Library through 1.14.3 has a heap buffer overflow in H5S__point_deserialize in H5Spoint.c.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceHeap buffer overflow vulnerability in H5S__point_deserialize function in H5Spoint.c of HDF5 Library through version 1.14.3. The flaw allows specially crafted HDF5 files to trigger overflow during point deserialization, potentially leading to denial of service or arbitrary code execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 1.14.4CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- High
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify installed HDF5 library versionRun 'h5dump --version' or check package manager (dpkg -l | grep hdf5, rpm -qa | grep hdf5) or inspect libhdf5.so version stringAffected if Version is 1.14.3 or earlier (any version < 1.14.4)
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Locate HDF5 library filesSearch for libhdf5.so or libhdf5.a in system paths: /usr/lib, /usr/local/lib, or custom install directories using 'find / -name "libhdf5*" 2>/dev/null'Affected if Any installed HDF5 library version is below 1.14.4
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Identify applications using HDF5Run 'ldd /path/to/binary | grep hdf5' on suspected applications, or use 'grep -r HDF5 /proc/$(pgrep -f processname)/maps' for running processesAffected if Any application dynamically links to a vulnerable HDF5 library version
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Detect point deserialization operationsMonitor for HDF5 file access patterns involving point selections (H5Ssel_points API calls), or audit application logs for HDF5 operations on datasets with point selectionsAffected if Application reads HDF5 files containing point selection datasets using vulnerable library
User is affected if HDF5 library version is below 1.14.4 AND the system processes HDF5 files, especially untrusted ones.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped1.14.4
Upgrade HDF5 Library to a version beyond 1.14.3 when available, or apply vendor-supplied patches. Prioritize remediation in environments processing untrusted HDF5 file input.
1.14.4
- Identify all systems and applications using HDF5 library version < 1.14.4
- Consult your system's package manager or build system to check the currently installed HDF5 version
- Upgrade HDF5 to version 1.14.4 or later from the official HDF Group (www.hdfgroup.org)
- After upgrading the library, rebuild and recompile any applications that link against HDF5 to ensure they use the updated library
- Verify the upgrade was successful by checking the HDF5 version number
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation4.0 h
- Testing8.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-33876 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-33876 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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