https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 01 Oct 2026 11:42:09 +0000 https://vulnerability.circl.lu/vuln/fkie_cve-2026-19027 <p>The H5Z__nbit_decompress_one_byte, H5Z__nbit_decompress_one_nooptype, and H5Z__nbit_decompress_one_atomic functions in H5Znbit.c in HDF5 through 2.3.0 advance a read index into the compressed chunk buffer without bounding it against the buffer&#39;s actual size. This allows attackers to cause an out-of-bounds heap read, and in constrained cases disclosure of adjacent heap memory into decompressed dataset values, via a crafted HDF5 file whose N-Bit filter parameters describe more decompressed data than the stored compressed chunk actually contains, triggered via H5Dread, e.g. by the h5ls or h5repack tools.</p> <p>The H5Z__nbit_decompress_one_byte, H5Z__nbit_decompress_one_nooptype, and H5Z__nbit_decompress_one_atomic functions in H5Znbit.c in HDF5 through 2.3.0 advance a read index into the compressed chunk buffer without bounding it against the buffer&#39;s actual size. This allows attackers to cause an out-of-bounds heap read, and in constrained cases disclosure of adjacent heap memory into decompressed dataset values, via a crafted HDF5 file whose N-Bit filter parameters describe more decompressed data than the stored compressed chunk actually contains, triggered via H5Dread, e.g. by the h5ls or h5repack tools.</p> https://vulnerability.circl.lu/vuln/fkie_cve-2026-19027 https://vulnerability.circl.lu/vuln/ghsa-2pvh-qgr3-wp2r <p>The H5Z__nbit_decompress_one_byte, H5Z__nbit_decompress_one_nooptype, and H5Z__nbit_decompress_one_atomic functions in H5Znbit.c in HDF5 through 2.3.0 advance a read index into the compressed chunk buffer without bounding it against the buffer&#39;s actual size. This allows attackers to cause an out-of-bounds heap read, and in constrained cases disclosure of adjacent heap memory into decompressed dataset values, via a crafted HDF5 file whose N-Bit filter parameters describe more decompressed data than the stored compressed chunk actually contains, triggered via H5Dread, e.g. by the h5ls or h5repack tools.</p> <p>The H5Z__nbit_decompress_one_byte, H5Z__nbit_decompress_one_nooptype, and H5Z__nbit_decompress_one_atomic functions in H5Znbit.c in HDF5 through 2.3.0 advance a read index into the compressed chunk buffer without bounding it against the buffer&#39;s actual size. This allows attackers to cause an out-of-bounds heap read, and in constrained cases disclosure of adjacent heap memory into decompressed dataset values, via a crafted HDF5 file whose N-Bit filter parameters describe more decompressed data than the stored compressed chunk actually contains, triggered via H5Dread, e.g. by the h5ls or h5repack tools.</p> https://vulnerability.circl.lu/vuln/ghsa-2pvh-qgr3-wp2r https://vulnerability.circl.lu/vuln/msrc_cve-2026-19027 msrc_CVE-2026-19027 https://vulnerability.circl.lu/vuln/msrc_cve-2026-19027 https://vulnerability.circl.lu/vuln/rhsa-2026:73539 <p>hdf5: HDF5: Denial of service via crafted HDF5 file hdf5: HDF5: Information disclosure and denial of service via crafted HDF5 file hdf5: HDF5: Denial of Service via integer underflow in Fletcher32 filter</p> <p>hdf5: HDF5: Denial of service via crafted HDF5 file hdf5: HDF5: Information disclosure and denial of service via crafted HDF5 file hdf5: HDF5: Denial of Service via integer underflow in Fletcher32 filter</p> https://vulnerability.circl.lu/vuln/rhsa-2026:73539 https://vulnerability.circl.lu/vuln/ubuntu-cve-2026-19027 <p><strong>Affected:</strong> Ubuntu:Pro:14.04:LTS: hdf5, Ubuntu:Pro:16.04:LTS: hdf5, Ubuntu:Pro:18.04:LTS: hdf5, Ubuntu:Pro:20.04:LTS: hdf5, Ubuntu:22.04:LTS: hdf5, Ubuntu:24.04:LTS: hdf5, Ubuntu:26.04:LTS: hdf5</p> <p>The H5Z__nbit_decompress_one_byte, H5Z__nbit_decompress_one_nooptype, and H5Z__nbit_decompress_one_atomic functions in H5Znbit.c in HDF5 through 2.3.0 advance a read index into the compressed chunk buffer without bounding it against the buffer&#39;s actual size. This allows attackers to cause an out-of-bounds heap read, and in constrained cases disclosure of adjacent heap memory into decompressed dataset values, via a crafted HDF5 file whose N-Bit filter parameters describe more decompressed data than the stored compressed chunk actually contains, triggered via H5Dread, e.g. by the h5ls or h5repack tools.</p> <p><strong>Affected:</strong> Ubuntu:Pro:14.04:LTS: hdf5, Ubuntu:Pro:16.04:LTS: hdf5, Ubuntu:Pro:18.04:LTS: hdf5, Ubuntu:Pro:20.04:LTS: hdf5, Ubuntu:22.04:LTS: hdf5, Ubuntu:24.04:LTS: hdf5, Ubuntu:26.04:LTS: hdf5</p> <p>The H5Z__nbit_decompress_one_byte, H5Z__nbit_decompress_one_nooptype, and H5Z__nbit_decompress_one_atomic functions in H5Znbit.c in HDF5 through 2.3.0 advance a read index into the compressed chunk buffer without bounding it against the buffer&#39;s actual size. This allows attackers to cause an out-of-bounds heap read, and in constrained cases disclosure of adjacent heap memory into decompressed dataset values, via a crafted HDF5 file whose N-Bit filter parameters describe more decompressed data than the stored compressed chunk actually contains, triggered via H5Dread, e.g. by the h5ls or h5repack tools.</p> https://vulnerability.circl.lu/vuln/ubuntu-cve-2026-19027