Wind River Support Network


LIN1021-259 : Security Advisory - qemu - CVE-2021-20196

Created: May 24, 2021    Updated: Mar 16, 2022
Resolved Date: Mar 16, 2022
Found In Version:
Fix Version:
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Userspace


A NULL pointer dereference issue was found in the Floopy disk emulator of QEMU. It could occur while processing read/write ioport commands, if the selected Floopy drive is not initialised with a block device. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario.

CREATE(Triage):(User=admin) CVE-2021-20196 (


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