Medium
Security advisory
The pnv_lpc_do_eccb function in hw/ppc/pnv_lpc.c in Qemu before 3.1 allows out-of-bounds write or read access to PowerNV memory.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-18954
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:09 UTC · Revision 1
Source evidence
The pnv_lpc_do_eccb function in hw/ppc/pnv_lpc.c in Qemu before 3.1 allows out-of-bounds write or read access to PowerNV memory.
osv:CVE-2018-18954
Complete source record
{
"id": "9b8e0263ce01eafe3b7ba7f8b8f4a8e7cf0a9af1b6161298bf4868ceffd402d6",
"url": "https://osv.dev/vulnerability/CVE-2018-18954",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-18954",
"summary": "The pnv_lpc_do_eccb function in hw/ppc/pnv_lpc.c in Qemu before 3.1 allows out-of-bounds write or read access to PowerNV memory.",
"evidence": "osv:CVE-2018-18954",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2018-18954",
"aliases": [
"CVE-2018-18954"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
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"type": "GIT",
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{
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}
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}
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}
}
],
"modified": "2026-10-24T10:30:36.068722021Z",
"provider": "osv",
"references": [
"https://seclists.org/bugtraq/2019/May/76",
"https://usn.ubuntu.com/3826-1/",
"https://www.debian.org/security/2019/dsa-4454",
"https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg00446.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
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"cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
},
{
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},
{
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}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
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],
"vendor_product": "opensuse:leap",
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{
"range": [
{
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},
{
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}
],
"source": "CPE_STRING"
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]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-18954",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 433894,
"published_at": "2018-11-15T20:29:00.41+00:00"
}