Medium
Security advisory
An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2022-4144
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 13:34 UTC · Revision 1
Source evidence
An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.
osv:CVE-2022-4144
Complete source record
{
"id": "50c8bb7038506be476197337b78b75331a88f1153d7d6f7765e11fbc8fe416df",
"url": "https://osv.dev/vulnerability/CVE-2022-4144",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2022-4144",
"summary": "An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.",
"evidence": "osv:CVE-2022-4144",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2022-4144",
"aliases": [
"CVE-2022-4144"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"
}
],
"affected": [
{
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{
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"events": [
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},
{
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}
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],
"modified": "2026-10-28T02:30:50.746210621Z",
"provider": "osv",
"references": [
"https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg04143.html",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/4xxx/CVE-2022-4144.json",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GTVPHLLXJ65BUMFBUUZ35F3J632SLFRK/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7J5IRXJYLELW7D43A75LOWRUE5EU54O/",
"https://nvd.nist.gov/vuln/detail/CVE-2022-4144",
"https://security.netapp.com/advisory/ntap-20230127-0012/",
"https://bugzilla.redhat.com/show_bug.cgi?id=2148506"
],
"provider_metadata": {
"cwe_ids": [
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],
"cna_assigner": "redhat",
"unresolved_ranges": [
{
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{
"range": [
{
"introduced": "affects versions up to latest v7.1.0"
},
{
"last_affected": "affects versions up to latest v7.1.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandaloneSingleVersion"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/4xxx/CVE-2022-4144.json"
}
},
"related_cves": [
{
"value": "CVE-2022-4144",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 519474,
"published_at": "2022-11-29T00:00:00+00:00"
}