{"id":"CLSA-2026-1790705830","summary":"libvirt: Fix of 2 CVEs","details":"- CVE-2021-3631: Fix insecure sVirt label generation (single-category MCS\n  labels) in virSecuritySELinuxMCSFind()\n- CVE-2021-3975: Fix use-after-free due to missing monitor lock in\n  qemuProcessHandleMonitorEOF()\n- CVE-2022-0897: Fix missing locking in nwfilterConnectNumOfNWFilters() (DoS)\n- CVE-2024-1441: Fix off-by-one error in udevListInterfacesByStatus()\n- Fix udev device reference leak on NULL interface names in\n  udevListInterfacesByStatus() and udevConnectListAllInterfaces()","modified":"2026-10-26T09:31:49.529882158Z","published":"2026-09-30T16:27:06Z","upstream":["CVE-2021-3631","CVE-2021-3975","CVE-2022-0897","CVE-2024-1441"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/centos7els/CLSA-2026-1790705830.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3631"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3975"}],"affected":[{"package":{"name":"libvirt","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/libvirt?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0-36.el7_9.5.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"}},{"package":{"name":"libvirt-admin","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/libvirt-admin?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0-36.el7_9.5.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"}},{"package":{"name":"libvirt-bash-completion","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/libvirt-bash-completion?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0-36.el7_9.5.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"}},{"package":{"name":"libvirt-client","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/libvirt-client?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0-36.el7_9.5.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"}},{"package":{"name":"libvirt-daemon","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/libvirt-daemon?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0-36.el7_9.5.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"}},{"package":{"name":"libvirt-daemon-config-network","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/libvirt-daemon-config-network?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0-36.el7_9.5.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"}},{"package":{"name":"libvirt-daemon-config-nwfilter","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/libvirt-daemon-config-nwfilter?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0-36.el7_9.5.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"}},{"package":{"name":"libvirt-daemon-driver-interface","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/libvirt-daemon-driver-interface?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0-36.el7_9.5.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"}},{"package":{"name":"libvirt-daemon-driver-lxc","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/libvirt-daemon-driver-lxc?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0-36.el7_9.5.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"}},{"package":{"name":"libvirt-daemon-driver-network","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/libvirt-daemon-driver-network?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0-36.el7_9.5.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"}},{"package":{"name":"libvirt-daemon-driver-nodedev","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/libvirt-daemon-driver-nodedev?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0-36.el7_9.5.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1790705830.json"}},{"package":{"name":"libvirt-daemon-driver-nwfilter","ecosystem":"TuxCare:CentOS:7","purl":"pkg:rpm/tuxcare/libvirt-daemon-driver-nwfilter?distro=centos-7"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0-36.el7_9.5.tuxcare.els2"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7e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