CVE ID:	CVE-2021-20196
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.
Test IDs:	1.3.6.1.4.1.25623.1.1.4.2022.0177.1   1.3.6.1.4.1.25623.1.0.893099   1.3.6.1.4.1.25623.1.0.854432
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2021-20196 [debian-lts-announce] 20220404 [SECURITY] [DLA 2970-1] qemu security update https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html https://bugs.launchpad.net/qemu/+bug/1912780 https://bugs.launchpad.net/qemu/+bug/1912780 https://security.netapp.com/advisory/ntap-20210708-0004/ https://security.netapp.com/advisory/ntap-20210708-0004/ https://www.openwall.com/lists/oss-security/2021/01/28/1 https://www.openwall.com/lists/oss-security/2021/01/28/1