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CVE-2026-106547

CVE-2026-106547 · HDF5 heap buffer overflow in H5VM_array_fill via crafted fill-value metadata

This page contains facts from public vulnerability sources. Check the original advisory before updating.

A heap-based buffer overflow in H5VM_array_fill() in src/H5VM.c in HDF5 before 2.2.0 lets a remote attacker cause an application crash and possibly execute arbitrary code with a crafted HDF5 file. When a dataset's unallocated chunks are read, H5D__fill_init() fills the fill-value buffer from datatype and dataspace metadata in the file. If that metadata is inconsistent with the buffer's allocated size, the write goes past the end of the buffer. The attacker can control the content written through the fill value stored in the file.

CVSS 8.5 · High · EPSS 0.2% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • hdf5

    Versions
    • ≥ 1.10.0, < 2.2.0: Affected (semver)

    Update to 2.2.0

  • hdf5 Debian:12

    Versions
    • 1.10.10+repack-1
    • 1.10.10+repack-2
    • 1.10.10+repack-3
    • 1.10.10+repack-3.1
    • 1.10.10+repack-3.2
    • 1.10.10+repack-3.2+ports
    • 1.10.10+repack-3.3
    • 1.10.10+repack-4
    • 1.10.10+repack-5
    • 1.10.8+repack1-1
    • 1.12.0+repack-1~exp1
    • 1.12.0+repack-1~exp2
    • 1.12.2+repack-1~exp1
    • 1.14.3+repack-1~exp1
    • 1.14.3+repack1-1~exp2
    • 1.14.3+repack1-1~exp3
    • 1.14.4.3+repack-1~exp1
    • 1.14.4.3+repack-1~exp2
    • 1.14.4.3+repack-1~exp3
    • 1.14.5+repack-1
    • 1.14.5+repack-1~exp1
    • 1.14.5+repack-1~exp2
    • 1.14.5+repack-1~exp3
    • 1.14.5+repack-1~exp4
    • 1.14.5+repack-1~exp5
    • 1.14.5+repack-1~exp6
    • 1.14.5+repack-2
    • 1.14.5+repack-3
    • 1.14.5+repack-3.1
    • 1.14.5+repack-3~exp1
    • 1.14.5+repack-3~exp2
    • 1.14.5+repack-3~exp3
    • 1.14.5+repack-3~exp4
    • 1.14.5+repack-4
    • 1.14.5+repack-4~exp1
    • 1.14.5+repack-4~exp2
    • 1.14.5+repack-5~exp2
    • 1.14.5+repack-5~exp3
    • 1.14.6+repack-1
    • 1.14.6+repack-1~exp1
    • 1.14.6+repack-1~exp10
    • 1.14.6+repack-1~exp11
    • 1.14.6+repack-1~exp12
    • 1.14.6+repack-1~exp13
    • 1.14.6+repack-1~exp14
    • 1.14.6+repack-1~exp15
    • 1.14.6+repack-1~exp16
    • 1.14.6+repack-1~exp17
    • 1.14.6+repack-1~exp18
    • 1.14.6+repack-1~exp19
    • 1.14.6+repack-1~exp2
    • 1.14.6+repack-1~exp20
    • 1.14.6+repack-1~exp21
    • 1.14.6+repack-1~exp3
    • 1.14.6+repack-1~exp4
    • 1.14.6+repack-1~exp5
    • 1.14.6+repack-1~exp6
    • 1.14.6+repack-1~exp7
    • 1.14.6+repack-1~exp8
    • 1.14.6+repack-1~exp9
    • 1.14.6+repack-2
    • 1.14.6+repack-3~exp1
    • 2.1.0+repack-1
    • 2.1.0+repack-1~exp10
    • 2.1.0+repack-1~exp11
    • 2.1.0+repack-1~exp3
    • 2.1.0+repack-1~exp4
    • 2.1.0+repack-1~exp5
    • 2.1.0+repack-1~exp6
    • 2.1.0+repack-1~exp7
    • 2.1.0+repack-1~exp8
    • 2.1.0+repack-1~exp9
    • 2.2.0+repack-1
    • 2.2.0+repack-2
    • 2.2.0+repack-3
    • 2.2.0+repack-4
    • 2.2.0+repack-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • hdf5 Debian:13

    Versions
    • 1.14.5+repack-3
    • 1.14.5+repack-3.1
    • 1.14.5+repack-4
    • 1.14.5+repack-4~exp1
    • 1.14.5+repack-4~exp2
    • 1.14.5+repack-5~exp2
    • 1.14.5+repack-5~exp3
    • 1.14.6+repack-1
    • 1.14.6+repack-1~exp1
    • 1.14.6+repack-1~exp10
    • 1.14.6+repack-1~exp11
    • 1.14.6+repack-1~exp12
    • 1.14.6+repack-1~exp13
    • 1.14.6+repack-1~exp14
    • 1.14.6+repack-1~exp15
    • 1.14.6+repack-1~exp16
    • 1.14.6+repack-1~exp17
    • 1.14.6+repack-1~exp18
    • 1.14.6+repack-1~exp19
    • 1.14.6+repack-1~exp2
    • 1.14.6+repack-1~exp20
    • 1.14.6+repack-1~exp21
    • 1.14.6+repack-1~exp3
    • 1.14.6+repack-1~exp4
    • 1.14.6+repack-1~exp5
    • 1.14.6+repack-1~exp6
    • 1.14.6+repack-1~exp7
    • 1.14.6+repack-1~exp8
    • 1.14.6+repack-1~exp9
    • 1.14.6+repack-2
    • 1.14.6+repack-3~exp1
    • 2.1.0+repack-1
    • 2.1.0+repack-1~exp10
    • 2.1.0+repack-1~exp11
    • 2.1.0+repack-1~exp3
    • 2.1.0+repack-1~exp4
    • 2.1.0+repack-1~exp5
    • 2.1.0+repack-1~exp6
    • 2.1.0+repack-1~exp7
    • 2.1.0+repack-1~exp8
    • 2.1.0+repack-1~exp9
    • 2.2.0+repack-1
    • 2.2.0+repack-2
    • 2.2.0+repack-3
    • 2.2.0+repack-4
    • 2.2.0+repack-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • hdf5 Debian:14

    Versions
    • 1.14.5+repack-3
    • 1.14.5+repack-3.1
    • 1.14.5+repack-4
    • 1.14.5+repack-4~exp1
    • 1.14.5+repack-4~exp2
    • 1.14.5+repack-5~exp2
    • 1.14.5+repack-5~exp3
    • 1.14.6+repack-1
    • 1.14.6+repack-1~exp1
    • 1.14.6+repack-1~exp10
    • 1.14.6+repack-1~exp11
    • 1.14.6+repack-1~exp12
    • 1.14.6+repack-1~exp13
    • 1.14.6+repack-1~exp14
    • 1.14.6+repack-1~exp15
    • 1.14.6+repack-1~exp16
    • 1.14.6+repack-1~exp17
    • 1.14.6+repack-1~exp18
    • 1.14.6+repack-1~exp19
    • 1.14.6+repack-1~exp2
    • 1.14.6+repack-1~exp20
    • 1.14.6+repack-1~exp21
    • 1.14.6+repack-1~exp3
    • 1.14.6+repack-1~exp4
    • 1.14.6+repack-1~exp5
    • 1.14.6+repack-1~exp6
    • 1.14.6+repack-1~exp7
    • 1.14.6+repack-1~exp8
    • 1.14.6+repack-1~exp9
    • 1.14.6+repack-2
    • 1.14.6+repack-3~exp1
    • 2.1.0+repack-1
    • 2.1.0+repack-1~exp10
    • 2.1.0+repack-1~exp11
    • 2.1.0+repack-1~exp3
    • 2.1.0+repack-1~exp4
    • 2.1.0+repack-1~exp5
    • 2.1.0+repack-1~exp6
    • 2.1.0+repack-1~exp7
    • 2.1.0+repack-1~exp8
    • 2.1.0+repack-1~exp9
    • 2.2.0+repack-1
    • 2.2.0+repack-2
    • 2.2.0+repack-3
    • 2.2.0+repack-4
    • 2.2.0+repack-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • hdf5 Ubuntu:Pro:14.04:LTS

    Versions
    • 1.8.11-3ubuntu1
    • 1.8.11-5ubuntu1
    • 1.8.11-5ubuntu2
    • 1.8.11-5ubuntu6
    • 1.8.11-5ubuntu7
    • 1.8.11-5ubuntu7.1
    • 1.8.11-5ubuntu7.1+esm1
    • 1.8.11-5ubuntu7.1+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • hdf5 Ubuntu:Pro:16.04:LTS

    Versions
    • 1.8.15-patch1+docs-4
    • 1.8.15-patch1+docs-5
    • 1.8.16+docs-1
    • 1.8.16+docs-2
    • 1.8.16+docs-3
    • 1.8.16+docs-3ubuntu1
    • 1.8.16+docs-4
    • 1.8.16+docs-4ubuntu1
    • 1.8.16+docs-4ubuntu1.1
    • 1.8.16+docs-4ubuntu1.1+esm1
    • 1.8.16+docs-4ubuntu1.1+esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • hdf5 Ubuntu:Pro:18.04:LTS

    Versions
    • 1.10.0-patch1+docs-4
    • 1.10.0-patch1+docs-4ubuntu0.1~esm1
    • 1.10.0-patch1+docs-4ubuntu0.1~esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • hdf5 Ubuntu:Pro:20.04:LTS

    Versions
    • 1.10.4+repack-10
    • 1.10.4+repack-11
    • 1.10.4+repack-11ubuntu1
    • 1.10.4+repack-11ubuntu1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • r-bioc-rhdf5lib Ubuntu:20.04:LTS

    Versions
    • 1.6.0+dfsg-1
    • 1.6.3+dfsg-1
    • 1.8.0+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • hdf5 Ubuntu:22.04:LTS

    Versions
    • 1.10.6+repack-5
    • 1.10.7+repack-4ubuntu1
    • 1.10.7+repack-4ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • r-bioc-rhdf5lib Ubuntu:22.04:LTS

    Versions
    • 1.12.1+dfsg-3
    • 1.14.2+dfsg-2
    • 1.16.0+dfsg-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • hdf5 Ubuntu:24.04:LTS

    Versions
    • 1.10.8+repack1-1ubuntu1
    • 1.10.10+repack-3ubuntu1
    • 1.10.10+repack-3.1ubuntu3
    • 1.10.10+repack-3.1ubuntu4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • r-bioc-rhdf5lib Ubuntu:24.04:LTS

    Versions
    • 1.22.0+dfsg-1
    • 1.22.1+dfsg-1
    • 1.24.0+dfsg-1
    • 1.24.1+dfsg-1
    • 1.24.2+dfsg-1
    • 1.24.2+dfsg-1build1
    • 1.24.2+dfsg-1build2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • hdf5 Ubuntu:26.10

    Versions
    • 1.14.6+repack-2
    • 2.2.0+repack-4
    • 2.2.0+repack-5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • r-bioc-rhdf5lib Ubuntu:26.10

    Versions
    • 1.28.0+dfsg-3
    • 1.28.0+dfsg-4
    • 2.0.0+dfsg-1
    • 2.0.0+dfsg2-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • hdf5 Ubuntu:26.04:LTS

    Versions
    • 1.14.5+repack-3build1
    • 1.14.5+repack-4
    • 1.14.6+repack-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • r-bioc-rhdf5lib Ubuntu:26.04:LTS

    Versions
    • 1.28.0+dfsg-2build1
    • 1.28.0+dfsg-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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