HighFix available
qemu — security advisory
m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams.
- Products
- qemu
- Affected versions
- Not specified
- Fixed versions
- 1:3.1+dfsg-1
- CVEs
- CVE-2018-11806
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:47 UTC · Revision 1
Source evidence
m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams.
osv:DEBIAN-CVE-2018-11806
qemu
Fixed versions: 1:3.1+dfsg-1
qemu
Fixed versions: 1:3.1+dfsg-1
qemu
Fixed versions: 1:3.1+dfsg-1
Complete source record
{
"id": "b3ffc07e1a72f0e2d4d5a830ffc41f5e74d416aadcdb1dce0d129385a556da87",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-11806",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2018-11806",
"summary": "m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams.",
"evidence": "osv:DEBIAN-CVE-2018-11806",
"products": [
{
"name": {
"value": "qemu",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:3.1+dfsg-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "qemu",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:3.1+dfsg-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "qemu",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/2/ranges"
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],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2018-11806",
"aliases": [
"DEBIAN-CVE-2018-11806"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
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{
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}
],
"package": {
"name": "qemu",
"purl": "pkg:deb/debian/qemu?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-11806.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
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],
"package": {
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"purl": "pkg:deb/debian/qemu?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-11806.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
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{
"fixed": "1:3.1+dfsg-1"
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}
],
"package": {
"name": "qemu",
"purl": "pkg:deb/debian/qemu?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-11806.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:03:46.919291816Z",
"provider": "osv",
"upstream": [
"CVE-2018-11806"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2018-11806"
]
},
"related_cves": [
{
"value": "CVE-2018-11806",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 422214,
"published_at": "2018-06-13T16:29:01.483+00:00"
}