{"id":"UBUNTU-CVE-2019-18874","details":"psutil (aka python-psutil) through 5.6.5 can have a double free. This occurs because of refcount mishandling within a while or for loop that converts system data into a Python object.","modified":"2026-02-04T03:59:01.258095Z","published":"2019-11-12T02:15:00Z","related":["USN-4204-1"],"upstream":["CVE-2019-18874"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-18874"},{"type":"REPORT","url":"https://github.com/giampaolo/psutil/pull/1616"},{"type":"REPORT","url":"https://github.com/giampaolo/psutil/pull/1624"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4204-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-18874"}],"affected":[{"package":{"name":"python-psutil","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/python-psutil@3.4.2-1ubuntu0.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.2-1ubuntu0.1"}]}],"versions":["2.2.1-3","3.4.1-1","3.4.2-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.4.2-1ubuntu0.1","binary_name":"python-psutil"},{"binary_version":"3.4.2-1ubuntu0.1","binary_name":"python3-psutil"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18874.json"}},{"package":{"name":"python-psutil","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/python-psutil@5.4.2-1ubuntu0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.2-1ubuntu0.1"}]}],"versions":["5.0.1-1build2","5.4.1-1","5.4.2-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"5.4.2-1ubuntu0.1","binary_name":"python-psutil"},{"binary_version":"5.4.2-1ubuntu0.1","binary_name":"python3-psutil"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-18874.json"}}],"schema_version":"1.7.3","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"}]}