Low
Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-14394
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 17:40 UTC · Revision 1
Source evidence
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.
osv:CVE-2020-14394
Complete source record
{
"id": "9f4f9227db9e4f1a8390fcd84afc257b4234fc3e986ada36cfe5e9f0793d4cfe",
"url": "https://osv.dev/vulnerability/CVE-2020-14394",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-14394",
"summary": "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.",
"evidence": "osv:CVE-2020-14394",
"products": [],
"severity": "low",
"structured": {
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"aliases": [
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],
"metrics": [
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"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L"
}
],
"affected": [
{
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"repo": "https://gitlab.com/qemu-project/qemu",
"type": "GIT",
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{
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"source": "CPE_STRING"
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{
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"database_specific": {
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}
}
],
"modified": "2026-10-22T02:48:14.129504579Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/",
"https://bugzilla.redhat.com/show_bug.cgi?id=1908004",
"https://gitlab.com/qemu-project/qemu/-/issues/646"
],
"provider_metadata": {
"unresolved_ranges": [
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{
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{
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"related_cves": [
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 404292,
"published_at": "2022-08-17T21:15:07.913+00:00"
}