Integer Overflow or Wraparound Affecting qemu-project/qemu package, versions [,6.0.0)


Severity

Recommended
0.0
low
0
10

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

Threat Intelligence

EPSS
0.06% (26th percentile)

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  • Snyk IDSNYK-UNMANAGED-QEMUPROJECTQEMU-3006964
  • published26 Jan 2022
  • disclosed25 Feb 2021
  • creditUnknown

Introduced: 25 Feb 2021

CVE-2021-20203  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade qemu-project/qemu to version 6.0.0 or higher.

Overview

Affected versions of this package are vulnerable to Integer Overflow or Wraparound. An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.

References

CVSS Scores

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