The serial_update_parameters function in hw/char/serial.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (divide-by-zero error and QEMU process crash) via vectors involving a value of divider greater than baud base.
The product divides a value by zero.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Qemu | Qemu | * | 2.7.1 (including) |
| Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 | RedHat | qemu-kvm-rhev-10:2.9.0-10.el7 | * |
| Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 | RedHat | qemu-kvm-rhev-10:2.9.0-10.el7 | * |
| Red Hat OpenStack Platform 10.0 (Newton) | RedHat | qemu-kvm-rhev-10:2.9.0-10.el7 | * |
| Red Hat OpenStack Platform 11.0 (Ocata) | RedHat | qemu-kvm-rhev-10:2.9.0-10.el7 | * |
| Red Hat OpenStack Platform 8.0 (Liberty) | RedHat | qemu-kvm-rhev-10:2.9.0-10.el7 | * |
| Red Hat OpenStack Platform 9.0 (Mitaka) | RedHat | qemu-kvm-rhev-10:2.9.0-10.el7 | * |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 | RedHat | qemu-kvm-rhev-10:2.9.0-14.el7 | * |
| Qemu | Ubuntu | trusty | * |
| Qemu | Ubuntu | xenial | * |
| Qemu | Ubuntu | yakkety | * |
| Qemu-kvm | Ubuntu | precise | * |
| Qemu-kvm | Ubuntu | precise/esm | * |