NULL Pointer Dereference Affecting qemu-project/qemu package, versions [0,]


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.06% (27th percentile)

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  • Snyk IDSNYK-UNMANAGED-QEMUPROJECTQEMU-3006886
  • published26 Jan 2022
  • disclosed26 May 2021
  • creditUnknown

Introduced: 26 May 2021

CVE-2021-20196  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

There is no fixed version for qemu-project/qemu.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference. 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

CVSS Scores

version 3.1