{"id":"UBUNTU-CVE-2021-41496","details":"Buffer overflow in the array_from_pyobj function of fortranobject.c in NumPy \u003c 1.19, which allows attackers to conduct a Denial of Service attacks by carefully constructing an array with negative values. NOTE: The vendor does not agree this is a vulnerability; the negative dimensions can only be created by an already privileged user (or internally)","modified":"2026-01-30T01:22:04.134102Z","published":"2021-12-17T20:15:00Z","related":["USN-5763-1"],"upstream":["CVE-2021-41496"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-41496"},{"type":"REPORT","url":"https://github.com/numpy/numpy/issues/19000"},{"type":"REPORT","url":"https://github.com/numpy/numpy/pull/20630"},{"type":"REPORT","url":"https://github.com/numpy/numpy/commit/271010f1037150e95017f803f4214b8861e528f2"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5763-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-41496"}],"affected":[{"package":{"name":"numpy","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/numpy@1:1.17.4-5ubuntu3.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.17.4-5ubuntu3.1"}]}],"versions":["1:1.17.3-0ubuntu2","1:1.17.4-3ubuntu1","1:1.17.4-3ubuntu2","1:1.17.4-5ubuntu2","1:1.17.4-5ubuntu3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python3-numpy","binary_version":"1:1.17.4-5ubuntu3.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41496.json"}},{"package":{"name":"numpy","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/numpy@1:1.21.5-1ubuntu22.04.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.21.5-1ubuntu22.04.1"}]}],"versions":["1:1.19.5-1ubuntu2","1:1.19.5-1ubuntu3","1:1.20.2-1ubuntu1","1:1.21.4-2","1:1.21.5-1","1:1.21.5-1build2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"python3-numpy","binary_version":"1:1.21.5-1ubuntu22.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41496.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}