cve-2021-3671
Vulnerability from cvelistv5
Published
2021-10-12 00:00
Modified
2024-08-03 17:01
Severity ?
EPSS score ?
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
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-03T17:01:07.967Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_transferred" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2013080%2C" }, { "tags": [ "x_transferred" ], "url": "https://bugzilla.samba.org/show_bug.cgi?id=14770%2C" }, { "tags": [ "x_transferred" ], "url": "https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a" }, { "name": "DSA-5287", "tags": [ "vendor-advisory", "x_transferred" ], "url": "https://www.debian.org/security/2022/dsa-5287" }, { "name": "[debian-lts-announce] 20221126 [SECURITY] [DLA 3206-1] heimdal security update", "tags": [ "mailing-list", "x_transferred" ], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html" }, { "tags": [ "x_transferred" ], "url": "https://security.netapp.com/advisory/ntap-20221215-0002/" }, { "tags": [ "x_transferred" ], "url": "https://security.netapp.com/advisory/ntap-20230216-0008/" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "Samba", "vendor": "n/a", "versions": [ { "status": "affected", "version": "Fixed in samba 4.13.12, samba 4.14.8" } ] } ], "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." } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-476", "description": "CWE-476", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2023-02-16T00:00:00", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat" }, "references": [ { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2013080%2C" }, { "url": "https://bugzilla.samba.org/show_bug.cgi?id=14770%2C" }, { "url": "https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a" }, { "name": "DSA-5287", "tags": [ "vendor-advisory" ], "url": "https://www.debian.org/security/2022/dsa-5287" }, { "name": "[debian-lts-announce] 20221126 [SECURITY] [DLA 3206-1] heimdal security update", "tags": [ "mailing-list" ], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html" }, { "url": "https://security.netapp.com/advisory/ntap-20221215-0002/" }, { "url": "https://security.netapp.com/advisory/ntap-20230216-0008/" } ] } }, "cveMetadata": { "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2021-3671", "datePublished": "2021-10-12T00:00:00", "dateReserved": "2021-07-30T00:00:00", "dateUpdated": "2024-08-03T17:01:07.967Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-3671\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2021-10-12T18:15:08.357\",\"lastModified\":\"2024-11-21T06:22:07.473\",\"vulnStatus\":\"Modified\",\"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\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:N/I:N/A:P\",\"baseScore\":4.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.13.12\",\"matchCriteriaId\":\"AE0BDAA5-2AEC-40FD-A355-571DB1F7E49B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.14.0\",\"versionEndExcluding\":\"4.14.8\",\"matchCriteriaId\":\"A4749057-1B17-4E8E-A26E-0C2E2A6EA0BA\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"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\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:management_services_for_element_software:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"86B51137-28D9-41F2-AFA2-3CC22B4954D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:management_services_for_netapp_hci:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4455CF3A-CC91-4BE4-A7AB-929AC82E34F5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7CF3019-975D-40BB-A8A4-894E62BD3797\"}]}]}],\"references\":[{\"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\"},{\"url\":\"https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20221215-0002/\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20230216-0008/\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2022/dsa-5287\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Third Party Advisory\"]},{\"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\"},{\"url\":\"https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20221215-0002/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20230216-0008/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.debian.org/security/2022/dsa-5287\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}" } }
Loading…
Loading…
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.