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.
Metrics
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Advisories
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Fixes
Solution
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Workaround
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References
| Link | Providers |
|---|---|
| https://github.com/HDFGroup/hdf5/pull/6718 |
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History
Tue, 06 Oct 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A heap-based buffer over-read in H5Z__filter_scaleoffset() in src/H5Zscaleoffset.c in HDF5 through 2.2.0 lets a remote 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 is that large. Both values come from attacker-controlled scale-offset filter parameters in the dataset's filter pipeline message. | 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. |
Tue, 06 Oct 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A heap-based buffer over-read in H5Z__filter_scaleoffset() in src/H5Zscaleoffset.c in HDF5 through 2.2.0 lets a remote 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 is that large. Both values come from attacker-controlled scale-offset filter parameters in the dataset's filter pipeline message. | |
| Title | HDF5 scale-offset filter heap buffer over-read via crafted chunk | |
| Weaknesses | CWE-125 | |
| References |
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| Metrics |
cvssV4_0
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MITRE
Status: PUBLISHED
Assigner: HDFG
Published:
Updated: 2026-10-06T20:56:27.850Z
Reserved: 2026-08-05T22:14:42.476Z
Link: CVE-2026-19029
Vulnrichment
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NVD
Status : Received
Published: 2026-10-06T21:17:20.410
Modified: 2026-10-06T21:17:20.410
Link: CVE-2026-19029
Redhat
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OpenCVE Enrichment
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Weaknesses