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CVE-2020-14394

3.2 · LOW

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.

Published Aug 17, 2022CWE-835EPSS 0.39%

Overview

CVE-2020-14394 is a low-severity vulnerability. It was published on August 17, 2022 and has a CVSS 3.1 base score of 3.2 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.2, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refbugzilla.redhat.com/show_bug.cgi?id=1908004Refgitlab.com/qemu-project/qemu/-/issues/646Reflists.debian.org/debian-lts-announce/2023/03/msg00013.htmlReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/Refbugzilla.redhat.com/show_bug.cgi?id=1908004Refgitlab.com/qemu-project/qemu/-/issues/646Reflists.debian.org/debian-lts-announce/2023/03/msg00013.htmlReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/

How CyberStrike helps

Frequently asked questions

What is CVE-2020-14394?

CVE-2020-14394 is a low-severity vulnerability. It was published on August 17, 2022 and has a CVSS 3.1 base score of 3.2 (LOW).

How severe is CVE-2020-14394?

This vulnerability has a CVSS 3.1 base score of 3.2, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-14394?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-14394?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-14394 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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