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hdf5

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HDF5 (Hierarchical Data Format version 5) is a widely used binary file format and C library for storing large numerical arrays, hierarchical metadata, and chunked data, common in scientific computing, engineering, and enterprise data workflows. Recent discussions on WindowsForum.com focus on multiple CVEs affecting HDF5 version 1.14.6, including heap-based buffer overflows (CVE-2025-2308, CVE-2025-6818, CVE-2025-2310, CVE-2025-2914, CVE-2025-2153, CVE-2025-2923, CVE-2025-2924) and a metadata cache memory leak (CVE-2025-7068). These vulnerabilities can be triggered by processing crafted .h5 files, leading to crashes or potential memory corruption. Microsoft's Security Response Center has attested that Azure Linux includes the vulnerable library, but other Microsoft products may also be affected. Users are advised to apply upstream fixes and validate their deployments.
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    CVE-2025-2308: HDF5 Scale Offset Overflow and Azure Linux Attestation

    A heap‑based buffer overflow has been reported in the HDF5 library’s Scale‑Offset filter (function H5Z__scaleoffset_decompress_one_byte) and cataloged as CVE‑2025‑2308 — a defect that affects HDF5 1.14.6 and can produce a one‑byte out‑of‑bounds write during decompression of Scale‑Offset encoded...
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    Understanding CVE-2025-7068: HDF5 1.14.6 Metadata Cache Memory Leak

    HDF5 users and maintainers should treat a newly disclosed flaw — CVE-2025-7068 — as a real but limited operational risk: a memory‑leak in the HDF5 metadata/cache code that affects HDF5 1.14.6 and can be triggered by local operations that exercise the library’s metadata discard paths. Background...
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    HDF5 CVE-2025-6818 Heap Overflow: Risks and Remediation for 1.14.6

    A heap-based buffer overflow has been publicly disclosed in HDF5 1.14.6 — tracked as CVE-2025-6818 — rooted in the H5O__chunk_protect routine inside src/H5Ochunk.c, creating a locally exploitable crash and potential memory‑corruption vector that defenders must treat seriously in any environment...
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    CVE-2025-2310: HDF5 Heap Overflow Impacts 1.14.6 and Azure Linux Attestation

    A heap‑overflow in the HDF5 library (H5MM_strndup / metadata attribute decoder), tracked as CVE‑2025‑2310 and tied to HDF5 v1.14.6, has been publicly disclosed and is known to produce reproducible crashes — and Microsoft’s initial public mapping names Azure Linux as a Microsoft product that...
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    CVE-2025-2914: HDF5 Heap Overflow in Free-Space Serialization

    A heap-based buffer overflow in the HDF5 library’s free-space serialization code (tracked as CVE‑2025‑2914) has been publicly disclosed and reproducible proof‑of‑concept material is available: the bug can be triggered when HDF5 v1.14.6 (and earlier, where present) processes crafted free‑space...
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    • cve 2025 2914 free space serialization hdf5 heap overflow
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    • Forum: Security Alerts
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    CVE-2025-2153: HDF5 Heap Overflow and Azure Linux Attestation

    A critical heap‑based buffer overflow in the HDF5 library — tracked as CVE‑2025‑2153 and rooted in the H5SM_delete function in H5SM.c — has resurrected a familiar supply‑chain question: Microsoft’s advisory names Azure Linux as a carrier of the vulnerable open‑source code, but does that mean...
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    • azure linux cve 2025 2153 hdf5 supply chain security
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    • Forum: Security Alerts
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    CVE-2025-2923: Heap Overflow in HDF5 H5F_addr_encode_len Impacts Data Ingestion

    A heap‑based buffer overflow has been disclosed in the HDF5 library: CVE‑2025‑2923 documents a flaw in the function H5F_addr_encode_len (file src/H5Fint.c) that can write past an allocated buffer when processing crafted data, producing a reliable crash and a low‑to‑medium severity local attack...
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    • buffer overflow cve 2025 2923 hdf5 security patch
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    • Forum: Security Alerts
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    CVE-2025-2924 HDF5 Heap Overflow Explained and Mitigation

    A heap‑buffer overflow in HDF5’s heap-list deserialization routine — H5HL__fl_deserialize in src/H5HLcache.c — was disclosed in March 2025 as CVE‑2025‑2924; the flaw can cause out‑of‑bounds reads and heap corruption when the library processes crafted .h5 files, a proof‑of‑concept was published...
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    • cve 2025 2924 hdf5 heap overflow vulnerability
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    • Forum: Security Alerts
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    CVE-2025-2913: HDF5 UAF in H5FL__blk_gc_list (1.14.6)

    A critical use‑after‑free defect has been publicly disclosed in the HDF5 library: CVE‑2025‑2913 identifies a flaw in src/H5FL.c (function H5FL__blk_gc_list) that can dereference freed metadata under specific local conditions, creating a realistic denial‑of‑service and memory‑corruption risk for...
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    HDF5 1.14.6 CVE-2025-44905: Heap Overflow in Scale Offset Filter

    HDF5 1.14.6 contains a heap buffer overflow in the Scale‑Offset filter (H5Z__filter_scaleoffset) that can be triggered by malformed HDF5 files and has been assigned CVE‑2025‑44905, creating a realistic denial‑of‑service and memory‑corruption risk for any software or service that reads untrusted...
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    • cve 2025 62455 hdf5 heap overflow scale offset filter
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    • Forum: Security Alerts
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