FKIE_CVE-2011-0520
Vulnerability from fkie_nvd - Published: 2011-01-28 16:00 - Updated: 2026-06-16 23:27
Severity
Summary
The compress_add_dlabel_points function in dns/Compress.c in MaraDNS 1.4.03, 1.4.05, and probably other versions allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a long DNS hostname with a large number of labels, which triggers a heap-based buffer overflow.
References
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:maradns:maradns:1.4.03:*:*:*:*:*:*:*",
"matchCriteriaId": "3F496D23-5A2F-4C76-A02B-9B3A8C143D1F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:maradns:maradns:1.4.05:*:*:*:*:*:*:*",
"matchCriteriaId": "E3696E4F-7680-4DF5-8A46-440B6F4774C9",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The compress_add_dlabel_points function in dns/Compress.c in MaraDNS 1.4.03, 1.4.05, and probably other versions allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a long DNS hostname with a large number of labels, which triggers a heap-based buffer overflow."
},
{
"lang": "es",
"value": "La funci\u00f3n compress_add_dlabel_points en dns/Compress.c de MaraDNS v1.4.03, v1.4.05 y puede que otras versiones, permite a atacantes remotos provocar una denegaci\u00f3n de servicio (fallo de segmentaci\u00f3n) y posibilidad de ejecutar c\u00f3digo de su elecci\u00f3n a trav\u00e9s de un nombre de DNS largo con un largo n\u00famero de etiquetas, esto provoca un desbordamiento de b\u00fafer basado en memoria din\u00e1mica."
}
],
"id": "CVE-2011-0520",
"lastModified": "2026-06-16T23:27:33.143",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2011-01-28T16:00:04.673",
"references": [
{
"source": "secalert@redhat.com",
"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=610834"
},
{
"source": "secalert@redhat.com",
"url": "http://osvdb.org/70630"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/43027"
},
{
"source": "secalert@redhat.com",
"url": "http://secunia.com/advisories/43107"
},
{
"source": "secalert@redhat.com",
"url": "http://www.debian.org/security/2011/dsa-2196"
},
{
"source": "secalert@redhat.com",
"url": "http://www.openwall.com/lists/oss-security/2011/01/24/1"
},
{
"source": "secalert@redhat.com",
"url": "http://www.openwall.com/lists/oss-security/2011/01/24/6"
},
{
"source": "secalert@redhat.com",
"url": "http://www.securityfocus.com/bid/45966"
},
{
"source": "secalert@redhat.com",
"url": "http://www.vupen.com/english/advisories/2011/0699"
},
{
"source": "secalert@redhat.com",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/64885"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=610834"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://osvdb.org/70630"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/43027"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/43107"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2011/dsa-2196"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2011/01/24/1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2011/01/24/6"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/45966"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.vupen.com/english/advisories/2011/0699"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/64885"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-119"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Nomenclature
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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
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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.
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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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