CVE-2009-4893 (GCVE-0-2009-4893)
Vulnerability from cvelistv5 – Published: 2010-06-15 01:00 – Updated: 2024-08-07 07:17
VLAI
EPSS
VEX
Summary
Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| http://security.gentoo.org/glsa/glsa-201006-21.xml | vendor-advisoryx_refsource_GENTOO |
| http://www.openwall.com/lists/oss-security/2010/0… | mailing-listx_refsource_MLIST |
| http://www.securityfocus.com/bid/42077 | vdb-entryx_refsource_BID |
| http://www.unrealircd.com/txt/unrealsecadvisory.2… | x_refsource_CONFIRM |
Date Public
2009-04-13 00:00
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"criteria": "cpe:2.3:a:unrealircd:unrealircd:3.2.5:rc3:*:*:*:*:*:*",
"matchCriteriaId": "8F908926-F2DF-4DA1-B67D-33D6ED0F3685",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:unrealircd:unrealircd:3.2.6:*:*:*:*:*:*:*",
"matchCriteriaId": "F4F8A053-9596-4D33-A27E-D94E67618938",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:unrealircd:unrealircd:3.2.6:rc1:*:*:*:*:*:*",
"matchCriteriaId": "D9CD5E4B-0C96-4BEE-A590-1419565BB89D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:unrealircd:unrealircd:3.2.6:rc2:*:*:*:*:*:*",
"matchCriteriaId": "918C2949-60CC-4BD7-871E-A2C0909C4520",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:unrealircd:unrealircd:3.2.6:rc3:*:*:*:*:*:*",
"matchCriteriaId": "ADB9644D-A12B-40C8-9673-83F0EE07898F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:unrealircd:unrealircd:3.2.7:*:*:*:*:*:*:*",
"matchCriteriaId": "EBB21BA6-DC3D-47C7-8969-F3B4BB0EF964",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:unrealircd:unrealircd:3.2.7:rc1:*:*:*:*:*:*",
"matchCriteriaId": "940628BB-42FA-48E8-BB60-C0483C4EE77D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:unrealircd:unrealircd:3.2.7:rc2:*:*:*:*:*:*",
"matchCriteriaId": "E4258FC4-1D85-44BF-85DF-DFACE704D358",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:unrealircd:unrealircd:3.2.8:*:*:*:*:*:*:*",
"matchCriteriaId": "DCCCF5D1-EDA5-4793-BBDD-39D89248D97B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:unrealircd:unrealircd:3.2.8:rc1:*:*:*:*:*:*",
"matchCriteriaId": "AD0B364F-FC24-4F3A-874A-8235AC99A3BA",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:unrealircd:unrealircd:3.2.8:rc2:*:*:*:*:*:*",
"matchCriteriaId": "8B8C2218-D20D-402A-BA75-A2063FC80163",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors."
},
{
"lang": "es",
"value": "Desbordamiento de b\u00fafer en UnrealIRCd 3.2beta11 a 3.2.8, cuando allow::options::noident est\u00e1 habilitado, permite a atacantes remotos provocar una denegaci\u00f3n de servicio (ca\u00edda) y posiblemente ejecutar c\u00f3digo de su elecci\u00f3n mediante vectores no especificados."
}
],
"id": "CVE-2009-4893",
"lastModified": "2026-04-29T01:13:23.040",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2010-06-15T14:04:26.233",
"references": [
{
"source": "secalert@redhat.com",
"url": "http://security.gentoo.org/glsa/glsa-201006-21.xml"
},
{
"source": "secalert@redhat.com",
"url": "http://www.openwall.com/lists/oss-security/2010/06/14/13"
},
{
"source": "secalert@redhat.com",
"url": "http://www.securityfocus.com/bid/42077"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "http://www.unrealircd.com/txt/unrealsecadvisory.20090413.txt"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://security.gentoo.org/glsa/glsa-201006-21.xml"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2010/06/14/13"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/42077"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://www.unrealircd.com/txt/unrealsecadvisory.20090413.txt"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-119"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
}
}
}
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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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