The ehci_process_itd function in hw/usb/hcd-ehci.c in QEMU allows local guest OS administrators to cause a denial of service (infinite loop and CPU consumption) via a circular isochronous transfer descriptor (iTD) list.
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Qemu | Qemu | * | 2.5.1.1 (including) |
| Qemu | Ubuntu | devel | * |
| Qemu | Ubuntu | trusty | * |
| Qemu | Ubuntu | vivid | * |
| Qemu | Ubuntu | wily | * |
| Qemu-kvm | Ubuntu | precise | * |