gsd-2021-20203
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-20203",
"description": "An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.",
"id": "GSD-2021-20203",
"references": [
"https://www.suse.com/security/cve/CVE-2021-20203.html",
"https://ubuntu.com/security/CVE-2021-20203",
"https://security.archlinux.org/CVE-2021-20203",
"https://linux.oracle.com/cve/CVE-2021-20203.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-20203"
],
"details": "An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario.",
"id": "GSD-2021-20203",
"modified": "2023-12-13T01:23:11.863604Z",
"schema_version": "1.4.0"
}
},
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"ID": "CVE-2021-20203",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "qemu",
"version": {
"version_data": [
{
"version_affected": "=",
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}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
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}
]
},
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}
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]
},
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1922441"
},
{
"name": "https://bugs.launchpad.net/qemu/+bug/1913873",
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"url": "https://bugs.launchpad.net/qemu/+bug/1913873"
},
{
"name": "https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html",
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"url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html"
},
{
"name": "https://security.gentoo.org/glsa/202208-27",
"refsource": "MISC",
"url": "https://security.gentoo.org/glsa/202208-27"
},
{
"name": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html",
"refsource": "MISC",
"url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
{
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"cpe_match": [
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"cpe23Uri": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "5.2.0",
"vulnerable": true
}
],
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{
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"cpe_match": [
{
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"cpe_name": [],
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"cpe_match": [
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"description": {
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"value": "An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario."
}
]
},
"problemtype": {
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},
"references": {
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"tags": [
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},
{
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"url": "https://bugs.launchpad.net/qemu/+bug/1913873"
},
{
"name": "[debian-lts-announce] 20210410 [SECURITY] [DLA 2623-1] qemu security update",
"refsource": "MLIST",
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"url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00009.html"
},
{
"name": "GLSA-202208-27",
"refsource": "GENTOO",
"tags": [
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],
"url": "https://security.gentoo.org/glsa/202208-27"
},
{
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"refsource": "MLIST",
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"url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"
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]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 2.1,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "LOW",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 3.2,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L",
"version": "3.1"
},
"exploitabilityScore": 1.5,
"impactScore": 1.4
}
},
"lastModifiedDate": "2022-09-30T19:32Z",
"publishedDate": "2021-02-25T20:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.