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| Link | Providers |
|---|---|
| https://github.com/HDFGroup/hdf5/pull/6585 |
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Tue, 03 Nov 2026 16:30:00 +0000
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ssvc
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Tue, 03 Nov 2026 15:45:00 +0000
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| Description | HDF5 through 2.2.0 contains an out-of-bounds read vulnerability in H5Z__filter_szip() in src/H5Zszip.c. When decoding a szip-compressed chunk, the function subtracts the 4-byte uncompressed-length header from the chunk length without first verifying that the chunk is at least 4 bytes long. A truncated or corrupted chunk shorter than the header causes the length calculation to wrap around to a very large value, and the decompressor reads far past the end of the chunk buffer. An attacker who can get a user or application to read a dataset from a crafted HDF5 file can cause a denial of service. Only builds with szip support (libaec or the szip library) are affected. | |
| Title | Integer Underflow Leads to Out-of-Bounds Read via Truncated Chunk in HDF5 Szip Filter | |
| Weaknesses | CWE-125 | |
| References |
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| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: HDFG
Published:
Updated: 2026-11-03T15:43:43.838Z
Reserved: 2026-11-02T21:30:10.652Z
Link: CVE-2026-120755
Updated: 2026-11-03T15:43:33.553Z
Status : Awaiting Analysis
Published: 2026-11-03T16:17:22.790
Modified: 2026-11-03T16:30:17.150
Link: CVE-2026-120755
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