{"id":"UBUNTU-CVE-2025-6818","details":"A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5O__chunk_protect of the file /src/H5Ochunk.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.","modified":"2026-05-20T16:11:29.011116773Z","published":"2025-06-28T16:15:00Z","upstream":["CVE-2025-6818"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-6818"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-6818"},{"type":"REPORT","url":"https://github.com/HDFGroup/hdf5/issues/5573"},{"type":"REPORT","url":"https://github.com/user-attachments/files/20623382/hdf5_crash_5.txt"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.314256"},{"type":"REPORT","url":"https://vuldb.com/?id.314256"},{"type":"REPORT","url":"https://vuldb.com/?submit.602326"}],"affected":[{"package":{"name":"hdf5","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/hdf5?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.10.4+repack-10","1.10.4+repack-11","1.10.4+repack-11ubuntu1","1.10.4+repack-11ubuntu1+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.10.4+repack-11ubuntu1+esm1","binary_name":"hdf5-helpers"},{"binary_version":"1.10.4+repack-11ubuntu1+esm1","binary_name":"hdf5-tools"},{"binary_version":"1.10.4+repack-11ubuntu1+esm1","binary_name":"libhdf5-103"},{"binary_version":"1.10.4+repack-11ubuntu1+esm1","binary_name":"libhdf5-cpp-103"},{"binary_version":"1.10.4+repack-11ubuntu1+esm1","binary_name":"libhdf5-java"},{"binary_version":"1.10.4+repack-11ubuntu1+esm1","binary_name":"libhdf5-jni"},{"binary_version":"1.10.4+repack-11ubuntu1+esm1","binary_name":"libhdf5-mpich-103"},{"binary_version":"1.10.4+repack-11ubuntu1+esm1","binary_name":"libhdf5-openmpi-103"}],"priority_reason":"Upstream 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