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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 se...
CVE-2021-20196
First seen on SecPulse
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2021-20196 qemu Fixed in: 1:6.2+dfsg-1
- Ubuntu UBUNTU-CVE-2021-20196 qemu Fixed in: 2.0.0+dfsg-2ubuntu1.47+esm6
Original description The description as published by the source.
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.
References
- advisory lists.debian.org
- advisory lists.debian.org
- advisory security.netapp.com
- patch bugs.launchpad.net
- patch openwall.com