Security update for kvm

Open Source Vulnerabilities SUSE-SU-2021:14774-1

This update for kvm fixes the following issues: - CVE-2021-3594: invalid pointer initialization may lead to information disclosure in slirp (udp) (bsc#1187367) - CVE-2021-3592: invalid pointer initialization may lead to information disclosure (bootp). (bsc#1187364) - CVE-2021-3416: infinite loop in loopback mode may lead to stack overflow. (bsc#1186473) - CVE-2020-15469: MMIO ops null pointer dereference may lead to DoS. (bsc#1173612) - CVE-2020-11947: iscsi_aio_ioctl_cb in block/iscsi.c has a heap-based buffer over-read. (bsc#1180523) - CVE-2021-20221: out-of-bound heap buffer access via an interrupt ID field. (bsc#1181933) - CVE-2020-25707: infinite loop in e1000e_write_packet_to_guest() in hw/net/e1000e_core.c. (bsc#1178683) - CVE-2020-15863: stack-based overflow in xgmac_enet_send() in hw/net/xgmac.c. (bsc#1174386)