SUSE-SU-2020:2015-1 Security update for qemu

This update for qemu to version 4.2.1 fixes the following issues: - CVE-2020-10761: Fixed a denial of service in Network Block Device nbd support infrastructure bsc1172710. - CVE-2020-13800: Fixed a denial of service possibility in ati-vga emulation bsc1172495. - CVE-2020-13659: Fixed a null...