fkie_cve-2021-3671
Vulnerability from fkie_nvd
Published
2021-10-12 18:15
Modified
2024-11-21 06:22
Severity ?
Summary
A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| samba | samba | * | |
| samba | samba | * | |
| debian | debian_linux | 10.0 | |
| debian | debian_linux | 11.0 | |
| netapp | management_services_for_element_software | - | |
| netapp | management_services_for_netapp_hci | - | |
| netapp | ontap_select_deploy_administration_utility | - |
{
"configurations": [
{
"nodes": [
{
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"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
"matchCriteriaId": "AE0BDAA5-2AEC-40FD-A355-571DB1F7E49B",
"versionEndExcluding": "4.13.12",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A4749057-1B17-4E8E-A26E-0C2E2A6EA0BA",
"versionEndExcluding": "4.14.8",
"versionStartIncluding": "4.14.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED",
"vulnerable": true
}
],
"negate": false,
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}
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{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:a:netapp:management_services_for_element_software:-:*:*:*:*:*:*:*",
"matchCriteriaId": "86B51137-28D9-41F2-AFA2-3CC22B4954D1",
"vulnerable": true
},
{
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"matchCriteriaId": "4455CF3A-CC91-4BE4-A7AB-929AC82E34F5",
"vulnerable": true
},
{
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"vulnerable": true
}
],
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}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server."
},
{
"lang": "es",
"value": "Se ha encontrado una desreferencia de puntero null en la forma en que el servidor kerberos de Samba manejaba el sname faltante en TGS-REQ (Ticket Granting Server - Request). Un usuario autenticado podr\u00eda usar este fallo para bloquear el servidor samba"
}
],
"id": "CVE-2021-3671",
"lastModified": "2024-11-21T06:22:07.473",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-10-12T18:15:08.357",
"references": [
{
"source": "secalert@redhat.com",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2013080%2C"
},
{
"source": "secalert@redhat.com",
"url": "https://bugzilla.samba.org/show_bug.cgi?id=14770%2C"
},
{
"source": "secalert@redhat.com",
"tags": [
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"Third Party Advisory"
],
"url": "https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a"
},
{
"source": "secalert@redhat.com",
"tags": [
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],
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html"
},
{
"source": "secalert@redhat.com",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20221215-0002/"
},
{
"source": "secalert@redhat.com",
"tags": [
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],
"url": "https://security.netapp.com/advisory/ntap-20230216-0008/"
},
{
"source": "secalert@redhat.com",
"tags": [
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"url": "https://www.debian.org/security/2022/dsa-5287"
},
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2013080%2C"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugzilla.samba.org/show_bug.cgi?id=14770%2C"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a"
},
{
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"tags": [
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],
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20221215-0002/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "https://security.netapp.com/advisory/ntap-20230216-0008/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "https://www.debian.org/security/2022/dsa-5287"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "secalert@redhat.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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.
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