{"id":"UBUNTU-CVE-2021-36977","details":"matio (aka MAT File I/O Library) 1.5.20 and 1.5.21 has a heap-based buffer overflow in H5MM_memcpy (called from H5MM_malloc and H5C_load_entry), related to use of HDF5 1.12.0.","modified":"2026-04-22T12:57:50.469866Z","published":"2021-07-20T07:15:00Z","upstream":["CVE-2021-36977"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-36977"},{"type":"REPORT","url":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/matio/OSV-2021-440.yaml"},{"type":"REPORT","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31265"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-36977"}],"affected":[{"package":{"name":"libmatio","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/libmatio@1.5.21-1ubuntu0.1~esm1?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.19-2","1.5.21-1","1.5.21-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.5.21-1ubuntu0.1~esm1","binary_name":"libmatio11"},{"binary_name":"matio-tools","binary_version":"1.5.21-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36977.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}