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vuln-ubuntu/data/osv/cve/2021/UBUNTU-CVE-2021-3607.json
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{
"schema_version": "1.7.0",
"id": "UBUNTU-CVE-2021-3607",
"details": "An integer overflow was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a \"PVRDMA_REG_DSRHIGH\" write from the guest due to improper input validation. This flaw allows a privileged guest user to make QEMU allocate a large amount of memory, resulting in a denial of service. The highest threat from this vulnerability is to system availability.",
"aliases": [],
"upstream": [
"CVE-2021-3607"
],
"related": [
"USN-5010-1"
],
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
],
"published": "2021-06-18T00:00:00Z",
"modified": "2025-09-08T16:46:45Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "qemu",
"purl": "pkg:deb/ubuntu/qemu@1:4.2-3ubuntu6.17?arch=source&distro=focal"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:4.2-3ubuntu6.17"
}
]
}
],
"versions": [
"1:4.0+dfsg-0ubuntu9",
"1:4.0+dfsg-0ubuntu10",
"1:4.2-1ubuntu1",
"1:4.2-1ubuntu2",
"1:4.2-3ubuntu1",
"1:4.2-3ubuntu2",
"1:4.2-3ubuntu3",
"1:4.2-3ubuntu4",
"1:4.2-3ubuntu5",
"1:4.2-3ubuntu6",
"1:4.2-3ubuntu6.1",
"1:4.2-3ubuntu6.2",
"1:4.2-3ubuntu6.3",
"1:4.2-3ubuntu6.4",
"1:4.2-3ubuntu6.5",
"1:4.2-3ubuntu6.6",
"1:4.2-3ubuntu6.7",
"1:4.2-3ubuntu6.8",
"1:4.2-3ubuntu6.9",
"1:4.2-3ubuntu6.10",
"1:4.2-3ubuntu6.11",
"1:4.2-3ubuntu6.12",
"1:4.2-3ubuntu6.14",
"1:4.2-3ubuntu6.15",
"1:4.2-3ubuntu6.16"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "qemu",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-block-extra",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-guest-agent",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-kvm",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-system",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-system-arm",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-system-common",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-system-data",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-system-gui",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-system-mips",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-system-misc",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-system-ppc",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-system-s390x",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-system-sparc",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-system-x86",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-system-x86-microvm",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-system-x86-xen",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-user",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-user-binfmt",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-user-static",
"binary_version": "1:4.2-3ubuntu6.17"
},
{
"binary_name": "qemu-utils",
"binary_version": "1:4.2-3ubuntu6.17"
}
],
"availability": "No subscription required"
}
},
{
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "qemu",
"purl": "pkg:deb/ubuntu/qemu@1:6.0+dfsg-2expubuntu1?arch=source&distro=jammy"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:6.0+dfsg-2expubuntu1"
}
]
}
],
"versions": [],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "qemu",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-block-extra",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-guest-agent",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-system",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-system-arm",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-system-common",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-system-data",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-system-gui",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-system-mips",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-system-misc",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-system-ppc",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-system-s390x",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-system-sparc",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-system-x86",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-system-x86-microvm",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-system-x86-xen",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-user",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-user-binfmt",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-user-static",
"binary_version": "1:6.0+dfsg-2expubuntu1"
},
{
"binary_name": "qemu-utils",
"binary_version": "1:6.0+dfsg-2expubuntu1"
}
],
"availability": "No subscription required"
}
}
],
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-3607"
},
{
"type": "REPORT",
"url": "https://lists.gnu.org/archive/html/qemu-devel/2021-06/msg07925.html"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5010-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3607"
}
]
}
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