qemu/qemu_driver.c in libvirt before 6.0.0 mishandles the holding of a monitor job during a query to a guest agent, which allows attackers to cause a denial of service (API blockage).
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=953078
https://bugzilla.redhat.com/show_bug.cgi?id=1809740
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D5GE6ISYUL3CIWO3FQRUGMKTKP2NYED2/
https://security-tracker.debian.org/tracker/CVE-2019-20485
Source: Mitre, NVD
Published: 2020-03-19
Base Score: 2.7
Vector: CVSS2#AV:A/AC:L/Au:S/C:N/I:N/A:P
Severity: Low
Base Score: 5.7
Vector: CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity: Medium