Loop with Unreachable Exit Condition ('Infinite Loop') Affecting qemu package, versions <1:7.1+dfsg-1


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.37% (30th percentile)

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  • Snyk IDSNYK-ECHOLATEST-QEMU-18321966
  • published27 Jul 2026
  • disclosed17 Aug 2022

Introduced: 17 Aug 2022

CVE-2020-14394  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Echo:latest qemu to version 1:7.1+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.

CVSS Base Scores

version 3.1