Scheduled maintenance:
Some features related to account registration and licensing may be temporarily unavailable from Friday (May 8) at 1 PM to Sunday (May 10) at 5 PM (PST).
libvirt version before 4.2.0-rc1 is vulnerable to a resource exhaustion as a result of an incomplete fix for CVE-2018-5748 that affects QEMU monitor but now also triggered via QEMU guest agent.
https://nvd.nist.gov/vuln/detail/CVE-2018-1064