GSD-2018-17159
Vulnerability from gsd - Updated: 2023-12-13 01:22Details
In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, the NFS server lacks a bounds check in the READDIRPLUS NFS request. Unprivileged remote users with access to the NFS server can cause a resource exhaustion by forcing the server to allocate an arbitrarily large memory allocation.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2018-17159",
"description": "In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, the NFS server lacks a bounds check in the READDIRPLUS NFS request. Unprivileged remote users with access to the NFS server can cause a resource exhaustion by forcing the server to allocate an arbitrarily large memory allocation.",
"id": "GSD-2018-17159"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2018-17159"
],
"details": "In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, the NFS server lacks a bounds check in the READDIRPLUS NFS request. Unprivileged remote users with access to the NFS server can cause a resource exhaustion by forcing the server to allocate an arbitrarily large memory allocation.",
"id": "GSD-2018-17159",
"modified": "2023-12-13T01:22:31.187828Z",
"schema_version": "1.4.0"
}
},
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"ID": "CVE-2018-17159",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "FreeBSD",
"version": {
"version_data": [
{
"version_value": "FreeBSD 11.2 before 11.2-RELEASE-p5"
}
]
}
}
]
},
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}
]
}
},
"data_format": "MITRE",
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"data_version": "4.0",
"description": {
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"value": "In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, the NFS server lacks a bounds check in the READDIRPLUS NFS request. Unprivileged remote users with access to the NFS server can cause a resource exhaustion by forcing the server to allocate an arbitrarily large memory allocation."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Kernel improper bounds checking"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "106192",
"refsource": "BID",
"url": "http://www.securityfocus.com/bid/106192"
},
{
"name": "FreeBSD-SA-18:13",
"refsource": "FREEBSD",
"url": "https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc"
},
{
"name": "1042164",
"refsource": "SECTRACK",
"url": "http://www.securitytracker.com/id/1042164"
},
{
"name": "https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/",
"refsource": "MISC",
"url": "https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "11.2",
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
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"ID": "CVE-2018-17159"
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"data_version": "4.0",
"description": {
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{
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"value": "In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, the NFS server lacks a bounds check in the READDIRPLUS NFS request. Unprivileged remote users with access to the NFS server can cause a resource exhaustion by forcing the server to allocate an arbitrarily large memory allocation."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
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"value": "CWE-400"
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]
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},
"references": {
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"name": "FreeBSD-SA-18:13",
"refsource": "FREEBSD",
"tags": [
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],
"url": "https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc"
},
{
"name": "https://secuniaresearch.flexerasoftware.com/secunia_research/2018-24/",
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},
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"VDB Entry"
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}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.8,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "HIGH",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
},
"lastModifiedDate": "2018-12-31T16:45Z",
"publishedDate": "2018-12-04T15:29Z"
}
}
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
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- Confirmed: The vulnerability has been validated from an analyst's perspective.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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