fkie_cve-2016-3120
Vulnerability from fkie_nvd
Published
2016-08-01 02:59
Modified
2024-11-21 02:49
Severity ?
Summary
The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mit | kerberos_5 | 1.13 | |
| mit | kerberos_5 | 1.13.1 | |
| mit | kerberos_5 | 1.13.2 | |
| mit | kerberos_5 | 1.13.3 | |
| mit | kerberos_5 | 1.13.4 | |
| mit | kerberos_5 | 1.13.5 | |
| mit | kerberos_5 | 1.13.6 | |
| mit | kerberos_5 | 1.14 | |
| mit | kerberos_5 | 1.14.1 | |
| mit | kerberos_5 | 1.14.2 |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.13:*:*:*:*:*:*:*",
"matchCriteriaId": "169D00BD-344F-453C-BE7C-9DF0740080BB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.13.1:*:*:*:*:*:*:*",
"matchCriteriaId": "765B3248-A524-4A79-858C-E787C1C1599E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.13.2:*:*:*:*:*:*:*",
"matchCriteriaId": "BF1BB0AB-2C22-49F9-9D2A-074D2F711BA8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.13.3:*:*:*:*:*:*:*",
"matchCriteriaId": "C8EC001E-9507-410D-836F-93002789D574",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.13.4:*:*:*:*:*:*:*",
"matchCriteriaId": "CC0939BF-9ACB-41A7-9B48-0FBF1176C8CB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.13.5:*:*:*:*:*:*:*",
"matchCriteriaId": "0037EF80-A599-4938-889F-9276E339A8E0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.13.6:*:*:*:*:*:*:*",
"matchCriteriaId": "1CABFE58-4811-49EC-8565-35EB7D5F6F4C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.14:*:*:*:*:*:*:*",
"matchCriteriaId": "6E30B176-1FE5-4C53-8B79-2E6D87DF05B3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.14.1:*:*:*:*:*:*:*",
"matchCriteriaId": "E650B5A3-99CA-491B-A1FB-259EF548D92E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.14.2:*:*:*:*:*:*:*",
"matchCriteriaId": "091F3C51-980E-482F-9882-0A555A8F74BC",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The validate_as_request function in kdc_util.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.13.6 and 1.4.x before 1.14.3, when restrict_anonymous_to_tgt is enabled, uses an incorrect client data structure, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an S4U2Self request."
},
{
"lang": "es",
"value": "La funci\u00f3n validate_as_request en kdc_util.c en el Key Distribution Center (KDC) en MIT Kerberos 5 (tambi\u00e9n conocido como krb5) en versiones anteriores a 1.13.6 y 1.4.x en versiones anteriores a 1.14.3, cuando restrict_anonymous_to_tgt est\u00e1 activo, utiliza una estructura de datos de clientes incorrecta, lo que permite a usuarios remotos autenticados provocar una denegaci\u00f3n de servicio (referencia al puntero NULO y ca\u00edda de daemon) a trav\u00e9s de una petici\u00f3n S4U2Selft."
}
],
"id": "CVE-2016-3120",
"lastModified": "2024-11-21T02:49:25.300",
"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
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.0"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2016-08-01T02:59:12.370",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Issue Tracking"
],
"url": "http://krbdev.mit.edu/rt/Ticket/Display.html?id=8458"
},
{
"source": "cve@mitre.org",
"url": "http://lists.opensuse.org/opensuse-updates/2016-09/msg00035.html"
},
{
"source": "cve@mitre.org",
"url": "http://rhn.redhat.com/errata/RHSA-2016-2591.html"
},
{
"source": "cve@mitre.org",
"url": "http://web.mit.edu/kerberos/krb5-1.13/"
},
{
"source": "cve@mitre.org",
"url": "http://web.mit.edu/kerberos/krb5-1.14/"
},
{
"source": "cve@mitre.org",
"url": "http://www.securityfocus.com/bid/92132"
},
{
"source": "cve@mitre.org",
"url": "http://www.securitytracker.com/id/1036442"
},
{
"source": "cve@mitre.org",
"url": "https://github.com/krb5/krb5/commit/93b4a6306a0026cf1cc31ac4bd8a49ba5d034ba7"
},
{
"source": "cve@mitre.org",
"url": "https://lists.debian.org/debian-lts-announce/2018/01/msg00040.html"
},
{
"source": "cve@mitre.org",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWL3KYFRJIX37EAM4DKCQQIQP2WBKL35/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking"
],
"url": "http://krbdev.mit.edu/rt/Ticket/Display.html?id=8458"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-updates/2016-09/msg00035.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2016-2591.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://web.mit.edu/kerberos/krb5-1.13/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://web.mit.edu/kerberos/krb5-1.14/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/92132"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securitytracker.com/id/1036442"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/krb5/krb5/commit/93b4a6306a0026cf1cc31ac4bd8a49ba5d034ba7"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2018/01/msg00040.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWL3KYFRJIX37EAM4DKCQQIQP2WBKL35/"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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.