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Home CVE Database CVE-2021-20196

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.

Priority: LOW
CVSS v3: 6.5
Component: qemu
Publish Date: Jan 25, 2021
Related ID: --
CVSS v2: MEDIUM
Modified Date: Jan 25, 2021

Find out more about CVE-2021-20196 from the MITRE-CVE dictionary and NIST NVD


Products Affected

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Product Name Status Defect Fixed Downloads
Linux
Wind River Linux LTS 17 Fixed LIN10-8185
10.17.41.26 --
Wind River Linux 8 Requires LTSS -- -- --
Wind River Linux 9 Requires LTSS -- -- --
Wind River Linux 7 Requires LTSS -- -- --
Wind River Linux LTS 21 Fixed LIN1021-259
10.21.20.11 --
Wind River Linux LTS 22 Not Vulnerable -- -- --
Wind River Linux LTS 18 Fixed LIN1018-7193
10.18.44.26 --
Wind River Linux LTS 19 Fixed LIN1019-5977
10.19.45.22 --
Wind River Linux CD release Fixed -- 10.21.48.0 --
VxWorks
VxWorks 7 Not Vulnerable -- -- --
VxWorks 6.9 Not Vulnerable -- -- --

Related Products

Product Name Status Defect Fixed Downloads

Notes
Requires LTSS - customers must have active LTSS (Long Term Security Shield) Support to receive up-to-date information about vulnerabilities that may affect legacy software. Please contact your Wind River account team or see https://docs.windriver.com/bundle/Support_and_Maintenance_Supplemental_Terms_and_Conditions and https://support2.windriver.com/index.php?page=plc for more information.
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