CVE-2025-2309

NameCVE-2025-2309
DescriptionA vulnerability has been found in HDF5 1.14.6 and classified as critical. This vulnerability affects the function H5T__bit_copy of the component Type Conversion Logic. The manipulation leads to heap-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The vendor plans to fix this issue in an upcoming release.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1103541

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
hdf5 (PTS)bullseye1.10.6+repack-4+deb11u1vulnerable
bookworm1.10.8+repack1-1vulnerable
sid, trixie1.14.5+repack-3vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
hdf5source(unstable)(unfixed)1103541

Notes

[trixie] - hdf5 <postponed> (Minor issue, revisit when fixed upstream)
[bookworm] - hdf5 <postponed> (Minor issue, revisit when fixed upstream)
https://github.com/madao123123/crash_report/blob/main/hdf5_poc/hdf5_poc3.md

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