{"id":"UBUNTU-CVE-2023-37365","details":"Hnswlib 0.7.0 has a double free in init_index when the M argument is a large integer.","modified":"2026-05-20T16:07:39.202125065Z","published":"2023-06-30T19:15:00Z","upstream":["CVE-2023-37365"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-37365"},{"type":"REPORT","url":"https://github.com/nmslib/hnswlib/issues/467"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-37365"}],"affected":[{"package":{"name":"hnswlib","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/hnswlib?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.0-3build1","0.5.2-1","0.6.0-1","0.6.2-1","0.6.2-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-hnswlib","binary_version":"0.6.2-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-37365.json"}},{"package":{"name":"hnswlib","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/hnswlib?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.0-1","0.7.0-2","0.7.0-2build1","0.8.0-1","0.8.0-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.8.0-1build1","binary_name":"python3-hnswlib"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-37365.json"}},{"package":{"name":"hnswlib","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/hnswlib?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8.0-1build3"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-hnswlib","binary_version":"0.8.0-1build3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-37365.json"}},{"package":{"name":"hnswlib","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/hnswlib?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8.0-1build3","0.8.0-1build4","0.8.0-1build5"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-hnswlib","binary_version":"0.8.0-1build5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-37365.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"}]}