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vuln-cve/data/2021/28xxx/CVE-2021-28700.json
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{
"containers": {
"cna": {
"affected": [
{
"product": "xen",
"vendor": "Xen",
"versions": [
{
"status": "affected",
"version": "4.12.x"
}
]
},
{
"product": "xen",
"vendor": "Xen",
"versions": [
{
"lessThan": "4.12",
"status": "unknown",
"version": "unspecified",
"versionType": "custom"
},
{
"lessThan": "unspecified",
"status": "affected",
"version": "4.13.x",
"versionType": "custom"
},
{
"lessThan": "unspecified",
"status": "unaffected",
"version": "next of xen-unstable",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "{'credit_data': {'description': {'description_data': [{'lang': 'eng', 'value': 'This issue was discovered by Julien Grall of Amazon.'}]}}}"
}
],
"descriptions": [
{
"lang": "en",
"value": "xen/arm: No memory limit for dom0less domUs The dom0less feature allows an administrator to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit from them is not set. This allow a domain to allocate memory beyond what an administrator originally configured."
}
],
"metrics": [
{
"other": {
"content": {
"description": {
"description_data": [
{
"lang": "eng",
"value": "Malicious dom0less guest could drive Xen out of memory and may\nresult to a Denial of Service (DoS) attack affecting the entire\nsystem."
}
]
}
},
"type": "unknown"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "unknown",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-08-14T20:06:06.000Z",
"orgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
"shortName": "XEN"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://xenbits.xenproject.org/xsa/advisory-383.txt"
},
{
"name": "FEDORA-2021-4f129cc0c1",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/"
},
{
"name": "FEDORA-2021-d68ed12e46",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/"
},
{
"name": "DSA-4977",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN"
],
"url": "https://www.debian.org/security/2021/dsa-4977"
},
{
"name": "FEDORA-2021-081f9bf5d2",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/"
},
{
"name": "GLSA-202208-23",
"tags": [
"vendor-advisory",
"x_refsource_GENTOO"
],
"url": "https://security.gentoo.org/glsa/202208-23"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "security@xen.org",
"ID": "CVE-2021-28700",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "xen",
"version": {
"version_data": [
{
"version_value": "4.12.x"
}
]
}
},
{
"product_name": "xen",
"version": {
"version_data": [
{
"version_affected": "?<",
"version_value": "4.12"
},
{
"version_affected": ">=",
"version_value": "4.13.x"
},
{
"version_affected": "!>",
"version_value": "xen-unstable"
}
]
}
}
]
},
"vendor_name": "Xen"
}
]
}
},
"configuration": {
"configuration_data": {
"description": {
"description_data": [
{
"lang": "eng",
"value": "Only Arm systems are vulnerable. Only domains created using the\ndom0less feature are affected.\n\nOnly domains created using the dom0less feature can leverage the\nvulnerability.\n\nAll versions of Xen since 4.12 are vulnerable."
}
]
}
}
},
"credit": {
"credit_data": {
"description": {
"description_data": [
{
"lang": "eng",
"value": "This issue was discovered by Julien Grall of Amazon."
}
]
}
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "xen/arm: No memory limit for dom0less domUs The dom0less feature allows an administrator to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit from them is not set. This allow a domain to allocate memory beyond what an administrator originally configured."
}
]
},
"impact": {
"impact_data": {
"description": {
"description_data": [
{
"lang": "eng",
"value": "Malicious dom0less guest could drive Xen out of memory and may\nresult to a Denial of Service (DoS) attack affecting the entire\nsystem."
}
]
}
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "unknown"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://xenbits.xenproject.org/xsa/advisory-383.txt",
"refsource": "MISC",
"url": "https://xenbits.xenproject.org/xsa/advisory-383.txt"
},
{
"name": "FEDORA-2021-4f129cc0c1",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/"
},
{
"name": "FEDORA-2021-d68ed12e46",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/"
},
{
"name": "DSA-4977",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2021/dsa-4977"
},
{
"name": "FEDORA-2021-081f9bf5d2",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/"
},
{
"name": "GLSA-202208-23",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202208-23"
}
]
},
"workaround": {
"workaround_data": {
"description": {
"description_data": [
{
"lang": "eng",
"value": "There is no known mitigation."
}
]
}
}
}
}
},
"adp": [
{
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2024-08-03T21:47:33.168Z"
},
"title": "CVE Program Container",
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://xenbits.xenproject.org/xsa/advisory-383.txt"
},
{
"name": "FEDORA-2021-4f129cc0c1",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/"
},
{
"name": "FEDORA-2021-d68ed12e46",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/"
},
{
"name": "DSA-4977",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN",
"x_transferred"
],
"url": "https://www.debian.org/security/2021/dsa-4977"
},
{
"name": "FEDORA-2021-081f9bf5d2",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/"
},
{
"name": "GLSA-202208-23",
"tags": [
"vendor-advisory",
"x_refsource_GENTOO",
"x_transferred"
],
"url": "https://security.gentoo.org/glsa/202208-23"
}
]
}
]
},
"cveMetadata": {
"assignerOrgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
"assignerShortName": "XEN",
"cveId": "CVE-2021-28700",
"datePublished": "2021-08-27T18:15:52.000Z",
"dateReserved": "2021-03-18T00:00:00.000Z",
"dateUpdated": "2024-08-03T21:47:33.168Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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