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.Referenceshttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3840https://bugzilla.redhat.com/show_bug.cgi?id=1663051https://www.redhat.com/archives/libvir-list/2019-January/msg00241.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00101.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00105.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TZRP2BRMI4RYFRPNFTTIAAUOGVN2ORP7/https://access.redhat.com/errata/RHSA-2019:2294
