description: 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.
problem types: CWE-476
affected:
{
product: qemu
vendor: n/a
versions:
status: affected, version: vulnerable up to (including) qemu 5.2.0
}