{"id":"UBUNTU-CVE-2019-16228","details":"An issue was discovered in py-lmdb 0.97. There is a divide-by-zero error in the function mdb_env_open2 if mdb_env_read_header obtains a zero value for a certain size field. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.","modified":"2026-05-20T16:03:43.560927297Z","published":"2019-09-11T15:15:00Z","upstream":["CVE-2019-16228"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-16228"},{"type":"REPORT","url":"https://github.com/TeamSeri0us/pocs/tree/master/lmdb/FPE"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-16228"}],"affected":[{"package":{"name":"py-lmdb","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/py-lmdb?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.86-1build1","0.86-1build2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.86-1build2","binary_name":"python-lmdb"},{"binary_version":"0.86-1build2","binary_name":"python3-lmdb"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-16228.json"}},{"package":{"name":"py-lmdb","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/py-lmdb?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.86-1build4"],"ecosystem_specific":{"binaries":[{"binary_name":"python-lmdb","binary_version":"0.86-1build4"},{"binary_version":"0.86-1build4","binary_name":"python3-lmdb"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-16228.json"}},{"package":{"name":"py-lmdb","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/py-lmdb?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.86-1.1","0.86-1.1build1","0.86-1.2","0.86-1.2build1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.86-1.2build1","binary_name":"python3-lmdb"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-16228.json"}},{"package":{"name":"py-lmdb","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/py-lmdb?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.0-1build1","1.0.0-1build2","1.0.0-1build3"],"ecosystem_specific":{"binaries":[{"binary_version":"1.0.0-1build3","binary_name":"python3-lmdb"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-16228.json"}},{"package":{"name":"py-lmdb","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/py-lmdb?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.1-2","1.4.1-2build1","1.4.1-2build2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.4.1-2build2","binary_name":"python3-lmdb"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-16228.json"}},{"package":{"name":"py-lmdb","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/py-lmdb?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.1-3build2"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-lmdb","binary_version":"1.4.1-3build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-16228.json"}},{"package":{"name":"py-lmdb","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/py-lmdb?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.1-3build2","1.4.1-3build3","1.4.1-3build4"],"ecosystem_specific":{"binaries":[{"binary_version":"1.4.1-3build4","binary_name":"python3-lmdb"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-16228.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}