CVE-2015-6855 (debian_linux, fedora, linux_enterprise_desktop, linux_enterprise_server, qemu, ubuntu_linux)

hw/ide/core.c in QEMU does not properly restrict the commands accepted by an ATAPI device, which allows guest users to cause a denial of service or possibly have unspecified other impact via certain IDE commands, as demonstrated by a WIN_READ_NATIVE_MAX command to an empty drive, which triggers a divide-by-zero error and instance crash.

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