GSD-2021-20316
Vulnerability from gsd - Updated: 2023-12-13 01:23Details
A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-20316",
"description": "A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share.",
"id": "GSD-2021-20316",
"references": [
"https://www.suse.com/security/cve/CVE-2021-20316.html",
"https://advisories.mageia.org/CVE-2021-20316.html",
"https://linux.oracle.com/cve/CVE-2021-20316.html",
"https://access.redhat.com/errata/RHSA-2022:1756",
"https://access.redhat.com/errata/RHSA-2022:2074"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
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],
"details": "A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share.",
"id": "GSD-2021-20316",
"modified": "2023-12-13T01:23:12.676770Z",
"schema_version": "1.4.0"
}
},
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"affects": {
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{
"product": {
"product_data": [
{
"product_name": "samba",
"version": {
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{
"version_value": "Affects samba file server before v4.15.0, Fixed in samba v4.15.0"
}
]
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}
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"problemtype": {
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{
"description": [
{
"lang": "eng",
"value": "CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)"
}
]
}
]
},
"references": {
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"name": "https://bugzilla.samba.org/show_bug.cgi?id=14842",
"refsource": "MISC",
"url": "https://bugzilla.samba.org/show_bug.cgi?id=14842"
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},
{
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"refsource": "MISC",
"url": "https://security-tracker.debian.org/tracker/CVE-2021-20316"
},
{
"name": "GLSA-202309-06",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202309-06"
}
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},
"nvd.nist.gov": {
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"nodes": [
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"tags": [
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"url": "https://www.samba.org/samba/security/CVE-2021-20316.html"
},
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=2009673",
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{
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},
{
"name": "https://security-tracker.debian.org/tracker/CVE-2021-20316",
"refsource": "MISC",
"tags": [
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"url": "https://security-tracker.debian.org/tracker/CVE-2021-20316"
},
{
"name": "https://bugzilla.samba.org/show_bug.cgi?id=14842",
"refsource": "MISC",
"tags": [
"Issue Tracking",
"Vendor Advisory"
],
"url": "https://bugzilla.samba.org/show_bug.cgi?id=14842"
},
{
"name": "GLSA-202309-06",
"refsource": "GENTOO",
"tags": [],
"url": "https://security.gentoo.org/glsa/202309-06"
}
]
}
},
"impact": {
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.6,
"impactScore": 5.2
}
},
"lastModifiedDate": "2023-09-17T09:15Z",
"publishedDate": "2022-08-23T16:15Z"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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 |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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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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