Critical
Security advisory
Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-2620
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:17 UTC · Revision 1
Source evidence
Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.
osv:CVE-2017-2620
Complete source record
{
"id": "58798c56d105bc5142327f650f7c71b0cb8fb3289e7914a7e0815387a784132c",
"url": "https://osv.dev/vulnerability/CVE-2017-2620",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-2620",
"summary": "Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.",
"evidence": "osv:CVE-2017-2620",
"products": [],
"severity": "critical",
"structured": {
"id": "CVE-2017-2620",
"aliases": [
"CVE-2017-2620"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
}
],
"affected": [
{
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{
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"v0.11.0-rc0",
"v0.5.0",
"v0.4.4",
"v0.4.3",
"v0.4.2",
"v0.4.1",
"v0.4.0",
"v0.3.0",
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"v0.1.6",
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"v0.1.3",
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],
"database_specific": {
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}
},
{
"ranges": [
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"type": "GIT",
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},
{
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{
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{
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}
}
],
"modified": "2026-10-24T10:30:16.717564823Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html",
"https://lists.debian.org/debian-lts-announce/2018/02/msg00005.html",
"https://security.gentoo.org/glsa/201703-07",
"https://security.gentoo.org/glsa/201704-01",
"https://support.citrix.com/article/CTX220771",
"https://xenbits.xen.org/xsa/advisory-209.html",
"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2620",
"https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg04700.html"
],
"provider_metadata": {
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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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"cpe:2.3:o:xen:xen:4.7.1:r3:*:*:*:*:*:*",
"cpe:2.3:o:xen:xen:4.7.1:r4:*:*:*:*:*:*",
"cpe:2.3:o:xen:xen:4.7.1:r5:*:*:*:*:*:*",
"cpe:2.3:o:xen:xen:4.7.1:r6:*:*:*:*:*:*",
"cpe:2.3:o:xen:xen:4.7.1:r7:*:*:*:*:*:*"
],
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{
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{
"introduced": "4.7.1-r1"
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{
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},
{
"introduced": "4.7.1-r2"
},
{
"last_affected": "4.7.1-r2"
},
{
"introduced": "4.7.1-r3"
},
{
"last_affected": "4.7.1-r3"
},
{
"introduced": "4.7.1-r4"
},
{
"last_affected": "4.7.1-r4"
},
{
"introduced": "4.7.1-r5"
},
{
"last_affected": "4.7.1-r5"
},
{
"introduced": "4.7.1-r6"
},
{
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},
{
"introduced": "4.7.1-r7"
},
{
"last_affected": "4.7.1-r7"
}
],
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]
}
]
}
},
"related_cves": [
{
"value": "CVE-2017-2620",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 429403,
"published_at": "2018-07-27T19:29:00.33+00:00"
}