Medium
Security advisory
rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-13765
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 09:26 UTC · Revision 1
Source evidence
rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.
osv:CVE-2020-13765
Complete source record
{
"id": "afa6fec86e5071d4a9d0bada05d8581b819b8c46f8a87dff1752800f0e57d495",
"url": "https://osv.dev/vulnerability/CVE-2020-13765",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-13765",
"summary": "rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.",
"evidence": "osv:CVE-2020-13765",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-13765",
"aliases": [
"CVE-2020-13765"
],
"metrics": [
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"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"
}
],
"affected": [
{
"ranges": [
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"repo": "https://github.com/qemu/qemu",
"type": "GIT",
"events": [
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{
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},
{
"fixed": "4f1c6cb2f9afafda05eab150fd2bd284edce6676"
}
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"database_specific": {
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{
"cpe": "cpe:2.3:a:qemu:qemu:4.0.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.0.0"
},
{
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"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:qemu:qemu:4.1.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.1.0"
},
{
"last_affected": "4.1.0"
}
],
"source": "CPE_STRING"
},
{
"range": [
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"fixed": "4f1c6cb2f9afafda05eab150fd2bd284edce6676"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"4.0.0",
"4.1.0",
"v4.1.0",
"v4.0.0",
"v4.1.0-rc5",
"v4.1.0-rc4",
"v4.1.0-rc3",
"v4.1.0-rc2",
"v4.1.0-rc1",
"v4.1.0-rc0"
],
"database_specific": {
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"vanir_signatures": [
{
"id": "CVE-2020-13765-52aec4f2",
"digest": {
"length": 806,
"function_hash": "315737413509995494059465210785208843611"
},
"source": "https://github.com/qemu/qemu/commit/4f1c6cb2f9afafda05eab150fd2bd284edce6676",
"target": {
"file": "hw/core/loader.c",
"function": "rom_copy"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2020-13765-65bc6aee",
"digest": {
"threshold": 0.9,
"line_hashes": [
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},
"source": "https://github.com/qemu/qemu/commit/4f1c6cb2f9afafda05eab150fd2bd284edce6676",
"target": {
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},
"deprecated": false,
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],
"vanir_signatures_modified": "2026-10-24T14:22:38Z"
}
},
{
"ranges": [
{
"repo": "https://gitlab.com/qemu-project/qemu",
"type": "GIT",
"events": [
{
"introduced": "131b9a05705636086699df15d4a6d328bb2585e8"
},
{
"last_affected": "9e06029aea3b2eca1d5261352e695edc1e7d7b8b"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:qemu:qemu:4.0.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "4.0.0"
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{
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],
"source": "CPE_STRING"
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{
"cpe": "cpe:2.3:a:qemu:qemu:4.1.0:*:*:*:*:*:*:*",
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},
{
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],
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]
}
}
],
"versions": [
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"4.1.0",
"v4.1.0",
"v4.0.0",
"v4.1.0-rc5",
"v4.1.0-rc4",
"v4.1.0-rc3",
"v4.1.0-rc2",
"v4.1.0-rc1",
"v4.1.0-rc0"
],
"database_specific": {
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}
}
],
"modified": "2026-10-24T14:22:38.605402570Z",
"provider": "osv",
"references": [
"https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=e423455c4f23a1a828901c78fe6d03b7dde79319",
"https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html",
"https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html",
"https://security.netapp.com/advisory/ntap-20200619-0006/",
"https://usn.ubuntu.com/4467-1/",
"https://www.openwall.com/lists/oss-security/2020/06/03/6",
"https://github.com/qemu/qemu/commit/4f1c6cb2f9afafda05eab150fd2bd284edce6676"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "16.04"
},
{
"last_affected": "16.04"
},
{
"introduced": "18.04"
},
{
"last_affected": "18.04"
},
{
"introduced": "20.04"
},
{
"last_affected": "20.04"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
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"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
},
{
"introduced": "9.0"
},
{
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}
],
"source": "CPE_STRING"
}
]
}
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}
},
"related_cves": [
{
"value": "CVE-2020-13765",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 443675,
"published_at": "2020-06-04T16:15:12.733+00:00"
}