SUSE-SU-2019:0580-1 Security update for ovmf

This update for ovmf fixes the following issues: Security issues fixed: - CVE-2018-12180: Fixed a buffer overflow in BlockIo service, which could lead to memory read/write overrun bsc1127820. - CVE-2018-12178: Fixed an improper DNS check upon receiving a new DNS packet bsc1127821. - CVE-2018-3630...