FKIE_CVE-2011-5000
Vulnerability from fkie_nvd - Published: 2012-04-05 14:55 - Updated: 2026-06-16 23:35
Severity
Summary
The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field. NOTE: there may be limited scenarios in which this issue is relevant.
References
Impacted products
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "cve@mitre.org"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*",
"matchCriteriaId": "ED7FD807-BC4A-4F8F-B9F0-49BCF2E687C7",
"versionEndIncluding": "5.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:1.2:*:*:*:*:*:*:*",
"matchCriteriaId": "316C8534-9CE3-456C-A04E-5D2B789FBE31",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:1.2.1:*:*:*:*:*:*:*",
"matchCriteriaId": "7BEB67BB-A442-46C2-8BC1-BBEB009AC532",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:1.2.2:*:*:*:*:*:*:*",
"matchCriteriaId": "B6E307F1-C765-409C-835C-133026A5179C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:1.2.3:*:*:*:*:*:*:*",
"matchCriteriaId": "CA997F5E-29FE-454A-9006-001D732CD4B1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:1.2.27:*:*:*:*:*:*:*",
"matchCriteriaId": "114134F3-BDFD-465D-8317-82F9D6EFA5A7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:1.3:*:*:*:*:*:*:*",
"matchCriteriaId": "DAB55300-F90D-45D3-88BC-5ADCEC366264",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:1.5:*:*:*:*:*:*:*",
"matchCriteriaId": "F3EC5611-31B5-4253-B99A-E81C202768A0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:1.5.7:*:*:*:*:*:*:*",
"matchCriteriaId": "43060323-1B51-45B4-BEB9-0E472896D8EA",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:1.5.8:*:*:*:*:*:*:*",
"matchCriteriaId": "5441C616-D127-42D9-88AA-0FC9AA16EB03",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.0:*:*:*:*:*:*:*",
"matchCriteriaId": "580008AC-2667-4708-8F7E-D70416A460EE",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.0.1:*:*:*:*:*:*:*",
"matchCriteriaId": "E05D8E86-EC01-4589-B372-4DEB7845C81F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.0.1p1:*:*:*:*:*:*:*",
"matchCriteriaId": "764AD252-CA2F-4A87-BCAA-7747E8C410E0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.0.2:*:*:*:*:*:*:*",
"matchCriteriaId": "CFFAA075-4277-4FD8-8A5A-867EEE1BA2F4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.0.2p1:*:*:*:*:*:*:*",
"matchCriteriaId": "269BB9F7-55E5-4CB3-8429-C37C7132799F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.0p1:*:*:*:*:*:*:*",
"matchCriteriaId": "C6E6F639-31A0-4026-B6D4-51BA79FB1D20",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.1:*:*:*:*:*:*:*",
"matchCriteriaId": "0211BCE3-0DED-40BA-8A21-1A97B91F71C7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.1p1:*:*:*:*:*:*:*",
"matchCriteriaId": "B4EE9E4B-CABC-4EA2-9075-CC23CEB1B0A3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.2:*:*:*:*:*:*:*",
"matchCriteriaId": "5AD7BB30-AC79-4153-852C-1053DCF4DE53",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.2.2:*:*:*:*:*:*:*",
"matchCriteriaId": "F48519C6-0C28-49A5-94C7-EF3AA88E2667",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.2.2p1:*:*:*:*:*:*:*",
"matchCriteriaId": "9E188C66-C8F1-4C13-AAFF-7C83B2A884B8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.2.3p1:*:*:*:*:*:*:*",
"matchCriteriaId": "9039BE91-AF0A-41E7-8F9F-15375890E120",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.3:*:*:*:*:*:*:*",
"matchCriteriaId": "08BCB2EA-DF9D-4853-805B-29FA6274E2B7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.3p1:*:*:*:*:*:*:*",
"matchCriteriaId": "0F93417F-2498-4576-9F5D-B59F77D39669",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.4:*:*:*:*:*:*:*",
"matchCriteriaId": "AF3AB42C-B614-4746-99AD-E94140D91BF3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.4p1:*:*:*:*:*:*:*",
"matchCriteriaId": "458167E5-9BC2-40BE-AC8A-9761A4F19494",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.5:*:*:*:*:*:*:*",
"matchCriteriaId": "3FB9B4C7-4235-4388-8E5D-E72ECCC37A7E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.5p1:*:*:*:*:*:*:*",
"matchCriteriaId": "86ACA0ED-A3D0-48A7-B06F-13709AD23B55",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.6:*:*:*:*:*:*:*",
"matchCriteriaId": "0FEB9262-D05E-4610-9C79-3EDE44AC7C0B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.6.1:*:*:*:*:*:*:*",
"matchCriteriaId": "8176879B-1875-4AC9-B15A-2ABCFCD04F88",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.6.1p1:*:*:*:*:*:*:*",
"matchCriteriaId": "FAA26A12-F96A-4025-BBCA-72B7A3B1E60C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.6.1p2:*:*:*:*:*:*:*",
"matchCriteriaId": "A02751E9-2D38-4495-9572-8D84D71D4773",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.7:*:*:*:*:*:*:*",
"matchCriteriaId": "7A36BEA2-DAE4-423C-8D85-0F6036351F98",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.7.1:*:*:*:*:*:*:*",
"matchCriteriaId": "80DC64F6-FE28-44BA-91D1-EC2DB11B2CFC",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.7.1p1:*:*:*:*:*:*:*",
"matchCriteriaId": "DF23EBA1-D3A9-413F-9E83-43A91492C031",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.7.1p2:*:*:*:*:*:*:*",
"matchCriteriaId": "44CCF5CD-B434-4392-A79A-C1945D2AE30A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.8:*:*:*:*:*:*:*",
"matchCriteriaId": "AEB456B8-9D8B-4985-858D-6A43FA5EE2E9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.8.1:*:*:*:*:*:*:*",
"matchCriteriaId": "2BD4E0F6-4EEA-4EC7-83E7-FC6F7D2E7A3C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.8.1p1:*:*:*:*:*:*:*",
"matchCriteriaId": "C35F4ABE-1B0C-4195-8F99-BF993A17882B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.9:*:*:*:*:*:*:*",
"matchCriteriaId": "ADC7352D-2916-47F7-A256-F897D763DC9B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.9.1:*:*:*:*:*:*:*",
"matchCriteriaId": "AEC3FC36-B246-4DCB-8984-228525D9A356",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:3.9.1p1:*:*:*:*:*:*:*",
"matchCriteriaId": "BC861000-37D8-4B0F-BFA0-57E9BE125B56",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.0:*:*:*:*:*:*:*",
"matchCriteriaId": "E003AB3C-8DF3-4AE8-82A3-984F30E5599B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.0p1:*:*:*:*:*:*:*",
"matchCriteriaId": "5EBE75FE-DDE2-43BA-80EF-15A6698EABC9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.1:*:*:*:*:*:*:*",
"matchCriteriaId": "1FF67D77-02AC-4807-984D-C5AE9799F051",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.1p1:*:*:*:*:*:*:*",
"matchCriteriaId": "683B26F0-5EA2-455A-8948-27C100BBA3AC",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.2:*:*:*:*:*:*:*",
"matchCriteriaId": "E5A75B23-2DD7-4EB2-BEAA-049FF4E51A14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.2p1:*:*:*:*:*:*:*",
"matchCriteriaId": "7279E1EC-DEBC-4ACC-925D-06A7697C162F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.3:*:*:*:*:*:*:*",
"matchCriteriaId": "7910598E-BEC1-4644-9DE4-D8BE505A4F9E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.3p1:*:*:*:*:*:*:*",
"matchCriteriaId": "FB416D0C-6C86-450F-8917-D4B1BD82AB1E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.3p2:*:*:*:*:*:*:*",
"matchCriteriaId": "3640CCC9-EC4A-44A4-B747-7BAAAD3460C7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.4:*:*:*:*:*:*:*",
"matchCriteriaId": "B2DD362E-9EA9-4E88-9A94-D7B471EB1FD4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.4p1:*:*:*:*:*:*:*",
"matchCriteriaId": "E3094069-AC2E-43BD-8094-D48E2526DECC",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.5:*:*:*:*:*:*:*",
"matchCriteriaId": "9B72CFB3-39C7-469C-AA59-69F5B8993BF7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.6:*:*:*:*:*:*:*",
"matchCriteriaId": "2A7154C4-8325-4495-92B1-B7897CD7303E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.7:*:*:*:*:*:*:*",
"matchCriteriaId": "99BF4471-763B-485A-ABD5-C68AD0A14058",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.8:*:*:*:*:*:*:*",
"matchCriteriaId": "40B1B209-53B8-48DC-AFFC-BD69D5978A0B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:4.9:*:*:*:*:*:*:*",
"matchCriteriaId": "7212E982-76F2-496C-9F08-EC4137F20804",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:5.0:*:*:*:*:*:*:*",
"matchCriteriaId": "52D13E08-7B08-44AA-9017-3EE3F6301E10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:5.1:*:*:*:*:*:*:*",
"matchCriteriaId": "2FBC7FF1-01EE-40A1-8735-14360A371803",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:5.2:*:*:*:*:*:*:*",
"matchCriteriaId": "987527F8-8A42-4729-A329-4D2AC8AFD6E1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:5.3:*:*:*:*:*:*:*",
"matchCriteriaId": "93910448-8D6F-4F7E-9C7F-959754ABA50D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:5.4:*:*:*:*:*:*:*",
"matchCriteriaId": "3356FDFD-BEA5-45A5-A36B-D1153AFE6C23",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:5.5:*:*:*:*:*:*:*",
"matchCriteriaId": "9394B8AD-AB22-4955-8774-C6BA2B56A260",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:5.6:*:*:*:*:*:*:*",
"matchCriteriaId": "0C5D4A9B-1194-4D63-AAC2-8701C890BB0D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openbsd:openssh:5.7:*:*:*:*:*:*:*",
"matchCriteriaId": "F75DB5AE-E99D-4827-B290-823E015AEE34",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The ssh_gssapi_parse_ename function in gss-serv.c in OpenSSH 5.8 and earlier, when gssapi-with-mic authentication is enabled, allows remote authenticated users to cause a denial of service (memory consumption) via a large value in a certain length field. NOTE: there may be limited scenarios in which this issue is relevant."
},
{
"lang": "es",
"value": "La funci\u00f3n de ssh_gssapi_parse_ename en GSS-serv.c en OpenSSH v5.8 y versiones anteriores, cuando gssapi-with-mic de autenticaci\u00f3n est\u00e1 activada, permite a usuarios remotos autenticados provocar una denegaci\u00f3n de servicio (excesivo consumo de memoria) a trav\u00e9s de un valor demasiado grande en un campo de longitud determinada. NOTA: puede haber escenarios limitados en el que este tema es relevante."
}
],
"id": "CVE-2011-5000",
"lastModified": "2026-06-16T23:35:45.470",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 3.5,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:S/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 6.8,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2012-04-05T14:55:03.590",
"references": [
{
"source": "cve@mitre.org",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0884.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Exploit"
],
"url": "http://seclists.org/fulldisclosure/2011/Aug/2"
},
{
"source": "cve@mitre.org",
"tags": [
"Exploit"
],
"url": "http://site.pi3.com.pl/adv/ssh_1.txt"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0884.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit"
],
"url": "http://seclists.org/fulldisclosure/2011/Aug/2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit"
],
"url": "http://site.pi3.com.pl/adv/ssh_1.txt"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-189"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Loading…
Loading…
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.
Loading…
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.
Loading…
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.
Loading…