Medium
Security advisory
Qemu emulator <= 3.0.0 built with the NE2000 NIC emulation support is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-10839
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:26 UTC · Revision 1
Source evidence
Qemu emulator <= 3.0.0 built with the NE2000 NIC emulation support is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS.
osv:CVE-2018-10839
Complete source record
{
"id": "8d8b93cb1b8359b8865b7570513c7418a6357d50b24fcdb12e1b0319c58ed183",
"url": "https://osv.dev/vulnerability/CVE-2018-10839",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-10839",
"summary": "Qemu emulator <= 3.0.0 built with the NE2000 NIC emulation support is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS.",
"evidence": "osv:CVE-2018-10839",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2018-10839",
"aliases": [
"CVE-2018-10839"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/qemu/qemu",
"type": "GIT",
"events": [
{
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},
{
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}
],
"database_specific": {
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{
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"range": [
{
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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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}
],
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}
}
],
"modified": "2026-10-24T10:30:39.616724697Z",
"provider": "osv",
"references": [
"https://access.redhat.com/errata/RHSA-2019:2892",
"https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html",
"https://www.debian.org/security/2018/dsa-4338",
"https://www.openwall.com/lists/oss-security/2018/10/08/1",
"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10839",
"https://usn.ubuntu.com/3826-1/",
"https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03273.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
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"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
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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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},
{
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{
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}
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"source": "CPE_STRING"
}
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},
{
"cpes": [
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"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
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{
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},
{
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{
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},
{
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}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-10839",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 434713,
"published_at": "2018-10-16T14:29:01.197+00:00"
}