{"id":"UBUNTU-CVE-2021-46243","details":"An untrusted pointer dereference vulnerability exists in HDF5 v1.13.1-1 via the function H5O__dtype_decode_helper () at hdf5/src/H5Odtype.c. This vulnerability can lead to a Denial of Service (DoS).","modified":"2026-05-20T16:06:31.503507755Z","published":"2022-01-21T21:15:00Z","upstream":["CVE-2021-46243"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-46243"},{"type":"REPORT","url":"https://github.com/HDFGroup/hdf5/issues/1326"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-46243"}],"affected":[{"package":{"name":"hdf5","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/hdf5?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.11-5ubuntu7.1+esm2","binary_name":"hdf5-helpers"},{"binary_version":"1.8.11-5ubuntu7.1+esm2","binary_name":"hdf5-tools"},{"binary_version":"1.8.11-5ubuntu7.1+esm2","binary_name":"libhdf5-7"},{"binary_version":"1.8.11-5ubuntu7.1+esm2","binary_name":"libhdf5-mpich2-7"},{"binary_version":"1.8.11-5ubuntu7.1+esm2","binary_name":"libhdf5-openmpi-7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-46243.json"}},{"package":{"name":"vtk","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/vtk?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.8.0-14ubuntu1","5.8.0-14ubuntu3","5.8.0-14.1ubuntu2","5.8.0-14.1ubuntu3","5.8.0-14.1ubuntu3+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"5.8.0-14.1ubuntu3+esm1","binary_name":"libvtk-java"},{"binary_version":"5.8.0-14.1ubuntu3+esm1","binary_name":"libvtk5.8"},{"binary_version":"5.8.0-14.1ubuntu3+esm1","binary_name":"libvtk5.8-qt4"},{"binary_version":"5.8.0-14.1ubuntu3+esm1","binary_name":"python-vtk"},{"binary_version":"5.8.0-14.1ubuntu3+esm1","binary_name":"tcl-vtk"},{"binary_version":"5.8.0-14.1ubuntu3+esm1","binary_name":"vtk-examples"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-46243.json"}},{"package":{"name":"hdf5","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/hdf5?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"1.8.16+docs-4ubuntu1.1+esm2","binary_name":"hdf5-helpers"},{"binary_version":"1.8.16+docs-4ubuntu1.1+esm2","binary_name":"hdf5-tools"},{"binary_version":"1.8.16+docs-4ubuntu1.1+esm2","binary_name":"libhdf5-10"},{"binary_version":"1.8.16+docs-4ubuntu1.1+esm2","binary_name":"libhdf5-cpp-11"},{"binary_version":"1.8.16+docs-4ubuntu1.1+esm2","binary_name":"libhdf5-mpich-10"},{"binary_version":"1.8.16+docs-4ubuntu1.1+esm2","binary_name":"libhdf5-openmpi-10"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-46243.json"}},{"package":{"name":"insighttoolkit4","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/insighttoolkit4?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.8.1-1ubuntu3","4.8.1-1ubuntu4","4.8.2-3.1ubuntu1","4.9.0-3ubuntu2","4.9.0-4ubuntu1","4.9.0-4ubuntu1.1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.9.0-4ubuntu1.1","binary_name":"insighttoolkit4-examples"},{"binary_version":"4.9.0-4ubuntu1.1","binary_name":"insighttoolkit4-python"},{"binary_version":"4.9.0-4ubuntu1.1","binary_name":"libinsighttoolkit4.9"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-46243.json"}},{"package":{"name":"kissplice","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/kissplice?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.1-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.3.1-1build1","binary_name":"kissplice"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-46243.json"}},{"package":{"name":"paraview","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/paraview?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.0+dfsg+1-2build1","4.1.0+dfsg+1-3","5.0.0+dfsg1-2build1","5.0.0+dfsg1-2build2","5.0.1+dfsg1-3","5.0.1+dfsg1-4"],"ecosystem_specific":{"binaries":[{"binary_version":"5.0.1+dfsg1-4","binary_name":"paraview"},{"binary_version":"5.0.1+dfsg1-4","binary_name":"paraview-python"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notice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