A NULL pointer dereference flaw was discovered in libvirt before version 5.0.0 in the way it gets interface information through the QEMU agent. An attacker in a guest VM can use this flaw to crash libvirtd and cause a denial of service.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-3840.json"