UBUNTU-CVE-2026-19029 (CVE-2026-19029)
Vulnerability from osv_ubuntu – Published: 2026-10-06 21:17 – Updated: 2026-10-17 09:38 – Source website
VLAI
Details
A heap-based buffer over-read in H5Z__filter_scaleoffset() 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 d_nelmts * 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.
Severity
N/A (UNKNOWN)
References
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"binary_version": "1.14.6+repack-2"
},
{
"binary_name": "libhdf5-mpich-cpp-310",
"binary_version": "1.14.6+repack-2"
},
{
"binary_name": "libhdf5-mpich-fortran-310",
"binary_version": "1.14.6+repack-2"
},
{
"binary_name": "libhdf5-mpich-hl-310",
"binary_version": "1.14.6+repack-2"
},
{
"binary_name": "libhdf5-mpich-hl-cpp-310",
"binary_version": "1.14.6+repack-2"
},
{
"binary_name": "libhdf5-mpich-hl-fortran-310",
"binary_version": "1.14.6+repack-2"
},
{
"binary_name": "libhdf5-openmpi-310",
"binary_version": "1.14.6+repack-2"
},
{
"binary_name": "libhdf5-openmpi-cpp-310",
"binary_version": "1.14.6+repack-2"
},
{
"binary_name": "libhdf5-openmpi-fortran-310",
"binary_version": "1.14.6+repack-2"
},
{
"binary_name": "libhdf5-openmpi-hl-310",
"binary_version": "1.14.6+repack-2"
},
{
"binary_name": "libhdf5-openmpi-hl-cpp-310",
"binary_version": "1.14.6+repack-2"
},
{
"binary_name": "libhdf5-openmpi-hl-fortran-310",
"binary_version": "1.14.6+repack-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "hdf5",
"purl": "pkg:deb/ubuntu/hdf5@1.14.6+repack-2?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.14.5+repack-3build1",
"1.14.5+repack-4",
"1.14.6+repack-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "r-bioc-rhdf5lib",
"binary_version": "1.28.0+dfsg-3"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "r-bioc-rhdf5lib",
"purl": "pkg:deb/ubuntu/r-bioc-rhdf5lib@1.28.0+dfsg-3?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.28.0+dfsg-2build1",
"1.28.0+dfsg-3"
]
}
],
"aliases": [],
"details": "A heap-based buffer over-read in H5Z__filter_scaleoffset() 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 d_nelmts * 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\u0027s filter pipeline message.",
"id": "UBUNTU-CVE-2026-19029",
"modified": "2026-10-17T09:38:06Z",
"published": "2026-10-06T21:17:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-19029"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-19029"
},
{
"type": "REPORT",
"url": "https://github.com/HDFGroup/hdf5/pull/6718"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-19029"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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