CVE-2017-5579

Pérdida de memoria en la función serial_exit_core en hw/char/serial.c en QEMU (también conocido como Quick Emulator) permite a usuarios locales privilegiados del SO invitado provocar una denegación de servicio (consumo de memoria del host y caída del proceso QEMU) a través de un gran número de operaciones de desenchufado del dispositivo .

KVM is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products. The following packages have been upgraded to a later upstream version: qemu-kvm-rhev. Security Fix: A stack buffer overflow flaw was found in the Quick Emulator built with the Network Block Device client support. The flaw could occur while processing server's response to a 'NBD_OPT_LIST' request. A malicious NBD server could use this issue to crash a remote NBD client resulting in DoS or potentially execute arbitrary code on client host with privileges of the QEMU process.