This update for ovmf fixes the following issues: Security issues fixed: - CVE-2019-14563: Fixed a memory corruption caused by insufficient numeric truncation . - CVE-2019-14553: Fixed the TLS certification verification in HTTPS-over-IPv6 boot sequences . - CVE-2019-14559: Fixed a remotely exploitable memory leak in the ARP handling code . - CVE-2019-14575: Fixed an insufficient signature check in the DxeImageVerificationHandler . - Enabled HTTPS-over-IPv6 .