{"id":"UBUNTU-CVE-2020-12430","details":"An issue was discovered in qemuDomainGetStatsIOThread in qemu/qemu_driver.c in libvirt 4.10.0 though 6.x before 6.1.0. A memory leak was found in the virDomainListGetStats libvirt API that is responsible for retrieving domain statistics when managing QEMU guests. This flaw allows unprivileged users with a read-only connection to cause a memory leak in the domstats command, resulting in a potential denial of service.","modified":"2026-04-22T12:28:12.664517Z","published":"2020-04-28T20:15:00Z","related":["USN-4371-1"],"upstream":["CVE-2020-12430"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12430"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4371-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-12430"}],"affected":[{"package":{"name":"libvirt","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libvirt@6.0.0-0ubuntu6?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.0-0ubuntu6"}]}],"versions":["5.4.0-0ubuntu5","6.0.0-0ubuntu1","6.0.0-0ubuntu2","6.0.0-0ubuntu3","6.0.0-0ubuntu4","6.0.0-0ubuntu5"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libnss-libvirt","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-clients","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-daemon","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-daemon-driver-lxc","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-daemon-driver-qemu","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-daemon-driver-storage-gluster","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-daemon-driver-storage-rbd","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-daemon-driver-storage-zfs","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-daemon-driver-vbox","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-daemon-driver-xen","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-daemon-system","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-daemon-system-systemd","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-daemon-system-sysv","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-sanlock","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt-wireshark","binary_version":"6.0.0-0ubuntu6"},{"binary_name":"libvirt0","binary_version":"6.0.0-0ubuntu6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-12430.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}