CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
5.1%
A flaw was found in QEMU. The async nature of hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service.
Vendor | Product | Version | CPE |
---|---|---|---|
qemu | qemu | * | cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* |
redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
redhat | enterprise_linux | 9.0 | cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* |
[
{
"product": "qemu",
"vendor": "n/a",
"versions": [
{
"version": "8.1.0-rc0",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 6",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "qemu-kvm",
"defaultStatus": "unknown",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 7",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "qemu-kvm",
"defaultStatus": "unknown",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 7",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "qemu-kvm-ma",
"defaultStatus": "unknown",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "virt:rhel/qemu-kvm",
"defaultStatus": "affected",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8 Advanced Virtualization",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "virt:av/qemu-kvm",
"defaultStatus": "affected",
"cpes": [
"cpe:/a:redhat:advanced_virtualization:8::el8"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "qemu-kvm",
"defaultStatus": "affected",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenStack Platform 13 (Queens)",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"packageName": "qemu-kvm-rhev",
"defaultStatus": "unknown",
"cpes": [
"cpe:/a:redhat:openstack:13"
]
},
{
"product": "Extra Packages for Enterprise Linux",
"vendor": "Fedora",
"collectionURL": "https://packages.fedoraproject.org/",
"packageName": "qemu",
"defaultStatus": "unaffected"
},
{
"product": "Fedora",
"vendor": "Fedora",
"collectionURL": "https://packages.fedoraproject.org/",
"packageName": "qemu",
"defaultStatus": "affected"
}
]