Huawei EulerOS: Security Advisory for qemu-kvm (EulerOS-SA-2021-1046)

The remote host is missing an update for the Huawei EulerOS 'qemu-kvm' package(s) announced via the EulerOS-SA-2021-1046 advisory.

In QEMU through 5.0.0, an integer overflow was found in the SM501 display driver implementation. This flaw occurs in the COPY_AREA macro while handling MMIO write operations through the sm501_2d_engine_write() callback. A local attacker could abuse this flaw to crash the QEMU process in sm501_2d_operation() in hw/display/sm501.c on the host, resulting in a denial of service.CVE-2020-12829 The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a denial of service (segmentation fault and server crash) by leveraging failure to ensure that all initialization occurs before talking to a client in the nbd_negotiate function.CVE-2017-9524 A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service.CVE-2020-25723

'qemu-kvm' package(s) on Huawei EulerOS Virtualization for ARM 64 3.0.2.0.

Checks if a vulnerable package version is present on the target host.

Please install the updated package(s).