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CVE-2020-14364

5.0 · MEDIUM

An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0.

Published Aug 31, 2020CWE-125EPSS 5.40%

Overview

CVE-2020-14364 is a medium-severity vulnerability. It was published on August 31, 2020 and has a CVSS 3.1 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its 'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host.

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

Reflists.opensuse.org/opensuse-security-announce/2020-10/msg00024.htmlRefbugzilla.redhat.com/show_bug.cgi?id=1869201Reflists.debian.org/debian-lts-announce/2020/09/msg00013.htmlReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JTZQUQ6ZBPMFMNAUQBVJFELYNMUZLL6P/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M52WIRMZL6TZRYZ65N6OAYNNFHV62O2N/Refsecurity.gentoo.org/glsa/202009-14Refsecurity.gentoo.org/glsa/202011-09Refsecurity.netapp.com/advisory/ntap-20200924-0006/Refusn.ubuntu.com/4511-1/Refwww.debian.org/security/2020/dsa-4760

How CyberStrike helps

Frequently asked questions

What is CVE-2020-14364?

CVE-2020-14364 is a medium-severity vulnerability. It was published on August 31, 2020 and has a CVSS 3.1 base score of 5.0 (MEDIUM).

How severe is CVE-2020-14364?

This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-14364?

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-2020-14364?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-14364 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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