Medium
Security advisory
The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-5683
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:32 UTC · Revision 1
Source evidence
The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation.
osv:CVE-2018-5683
Complete source record
{
"id": "d241b3aaca2538f11adf6ddcf4ff025726c728ff4c4ae14d69964444522e5350",
"url": "https://osv.dev/vulnerability/CVE-2018-5683",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-5683",
"summary": "The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation.",
"evidence": "osv:CVE-2018-5683",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2018-5683",
"aliases": [
"CVE-2018-5683"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H"
}
],
"affected": [
{
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{
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}
},
{
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{
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"type": "GIT",
"events": [
{
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},
{
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}
],
"database_specific": {
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{
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{
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},
{
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}
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"source": "CPE_RANGE"
}
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}
],
"versions": [
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],
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}
}
],
"modified": "2026-10-24T10:30:40.935727193Z",
"provider": "osv",
"references": [
"https://access.redhat.com/errata/RHSA-2018:0816",
"https://access.redhat.com/errata/RHSA-2018:1104",
"https://access.redhat.com/errata/RHSA-2018:2162",
"https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html",
"https://usn.ubuntu.com/3575-1/",
"https://www.debian.org/security/2018/dsa-4213",
"https://lists.gnu.org/archive/html/qemu-devel/2018-01/msg02597.html"
],
"provider_metadata": {
"unresolved_ranges": [
{
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"cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*"
],
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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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{
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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"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2018-5683",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 435049,
"published_at": "2018-01-23T18:29:00.58+00:00"
}