A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
[
{
"product": "qemu",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "vulnerable up to (including) qemu 5.2.0"
}
]
}
]