High
Security advisory
The Network Block Device (NBD) server in Quick Emulator (QEMU) before 2.11 is vulnerable to a denial of service issue. It could occur if a client sent large option requests, making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from serving other requests, resulting in DoS.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-15119
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:31 UTC · Revision 1
Source evidence
The Network Block Device (NBD) server in Quick Emulator (QEMU) before 2.11 is vulnerable to a denial of service issue. It could occur if a client sent large option requests, making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from serving other requests, resulting in DoS.
osv:CVE-2017-15119
Complete source record
{
"id": "f15645c24d6bbca1fdeec8a6688a942f30b4ae7b994ebdf39217b2c733d8cd63",
"url": "https://osv.dev/vulnerability/CVE-2017-15119",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-15119",
"summary": "The Network Block Device (NBD) server in Quick Emulator (QEMU) before 2.11 is vulnerable to a denial of service issue. It could occur if a client sent large option requests, making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from serving other requests, resulting in DoS.",
"evidence": "osv:CVE-2017-15119",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2017-15119",
"aliases": [
"CVE-2017-15119"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
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"type": "GIT",
"events": [
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},
{
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}
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],
"database_specific": {
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}
},
{
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"type": "GIT",
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{
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"database_specific": {
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{
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"versions": [
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}
}
],
"modified": "2026-10-24T10:30:19.408916847Z",
"provider": "osv",
"references": [
"https://access.redhat.com/errata/RHSA-2018:1104",
"https://access.redhat.com/errata/RHSA-2018:1113",
"https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg05044.html",
"https://usn.ubuntu.com/3575-1/",
"https://www.debian.org/security/2018/dsa-4213",
"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-15119"
],
"provider_metadata": {
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{
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"cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*"
],
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"extracted_events": [
{
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{
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{
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]
},
{
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{
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},
{
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],
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]
}
]
}
},
"related_cves": [
{
"value": "CVE-2017-15119",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 430015,
"published_at": "2018-07-27T16:29:00.35+00:00"
}