Buffer overflow in BlockIo service for EDK II may allow an unauthenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via network access.
https://usn.ubuntu.com/4349-1/
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03912en_us
https://access.redhat.com/errata/RHSA-2019:1116
https://access.redhat.com/errata/RHSA-2019:0968
https://access.redhat.com/errata/RHSA-2019:0809
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00046.html