The mptsas_process_scsi_io_request function in QEMU (aka Quick Emulator), when built with LSI SAS1068 Host Bus emulation support, allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) via vectors involving MPTSASRequest objects.
La función mptsas_process_scsi_io_request en QEMU (también conocido como Quick Emulator), cuando se construye con soporte de emulación LSI SAS1068 Host Bus, permite a administradores locales del SO invitado provocar una denegación de servicio (escritura fuera de límites y caída del proceso QUEMU) a través de vectores involucrando objetos MPTSASRequest.
Zhenhao Hong discovered that QEMU incorrectly handled the Virtio module. A privileged attacker inside the guest could use this issue to cause QEMU to consume resources, resulting in a denial of service. Li Qiang discovered that QEMU incorrectly handled VMWARE VMXNET3 network card emulation support. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. Various other issues were also addressed.
