{"action":"Upgrade libvirt to 5.0.0-1 or later.","affected":[{"fixed":"5.0.0-1","introduced":"0"}],"component":"libvirt","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["5.0.0-1"],"id":"tcs_01M5NE66DFDZXMG6SCMFPKEFDA","modified_at":"2026-09-21T07:03:18.703600188Z","published_at":"2019-03-27T13:29:01.680Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-3840","https://security-tracker.debian.org/tracker/CVE-2019-3840"],"severity":{"label":"medium","score":6.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-3840","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-3840"}],"summary":"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 lib"}