FKIE_CVE-2003-1029
Vulnerability from fkie_nvd - Published: 2004-02-17 05:00 - Updated: 2026-06-16 22:03
Severity
Summary
The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (infinite loop and memory consumption) via a packet with invalid data to UDP port 1701, which causes l2tp_avp_print to use a bad length value when calling print_octets.
References
{
"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:lbl:tcpdump:3.4:*:*:*:*:*:*:*",
"matchCriteriaId": "B9B50919-7C67-416D-BA2F-50747CDBE08F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:lbl:tcpdump:3.5:*:*:*:*:*:*:*",
"matchCriteriaId": "A6CC000D-857D-4E12-82E6-7F8168B463EE",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:lbl:tcpdump:3.5.2:*:*:*:*:*:*:*",
"matchCriteriaId": "45BACEA9-8C28-4DB6-96F7-D91B06C8EEF0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:lbl:tcpdump:3.6.2:*:*:*:*:*:*:*",
"matchCriteriaId": "C3214AA7-1EB2-4EC8-96AA-2A9985A5EB8A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:lbl:tcpdump:3.6.3:*:*:*:*:*:*:*",
"matchCriteriaId": "B3985632-2246-499E-9F9B-5A416D3AB4F0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:lbl:tcpdump:3.7:*:*:*:*:*:*:*",
"matchCriteriaId": "FD63F004-83A9-4CB3-A26D-E82589ED7FE3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (infinite loop and memory consumption) via a packet with invalid data to UDP port 1701, which causes l2tp_avp_print to use a bad length value when calling print_octets."
},
{
"lang": "es",
"value": "El procesador (parser) del protocolo L2TP en tcpdump 3.8.1 y anteriores permite a atacantes remotos causar una denegaci\u00f3n de servicio (bucle infinito y consumici\u00f3n de memoria) mediante un paquete con datos no v\u00e1lidos al puerto UDP 1701, lo que causa que l2tp_avp_print ustilice un valor de longitud malo cuando llama a print_octets()"
}
],
"id": "CVE-2003-1029",
"lastModified": "2026-06-16T22:03:23.470",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2004-02-17T05:00:00.000",
"references": [
{
"source": "cve@mitre.org",
"url": "http://lwn.net/Alerts/66805/"
},
{
"source": "cve@mitre.org",
"url": "http://marc.info/?l=bugtraq\u0026m=107193841728533\u0026w=2"
},
{
"source": "cve@mitre.org",
"url": "http://marc.info/?l=bugtraq\u0026m=107213553214985\u0026w=2"
},
{
"source": "cve@mitre.org",
"url": "http://marc.info/?l=tcpdump-workers\u0026m=107228187124962\u0026w=2"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/10636"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/10652"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/10668"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/10718"
},
{
"source": "cve@mitre.org",
"tags": [
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"Vendor Advisory"
],
"url": "http://www.debian.org/security/2004/dsa-425"
},
{
"source": "cve@mitre.org",
"url": "http://www.mandriva.com/security/advisories?name=MDKSA-2004:008"
},
{
"source": "cve@mitre.org",
"url": "http://www.securityfocus.com/archive/1/350238/30/21640/threaded"
},
{
"source": "cve@mitre.org",
"url": "http://www.securitytracker.com/id?1008748"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lwn.net/Alerts/66805/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://marc.info/?l=bugtraq\u0026m=107193841728533\u0026w=2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://marc.info/?l=bugtraq\u0026m=107213553214985\u0026w=2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://marc.info/?l=tcpdump-workers\u0026m=107228187124962\u0026w=2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/10636"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/10652"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/10668"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/10718"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "http://www.debian.org/security/2004/dsa-425"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.mandriva.com/security/advisories?name=MDKSA-2004:008"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/archive/1/350238/30/21640/threaded"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securitytracker.com/id?1008748"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-Other"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- Confirmed: The vulnerability has been validated from an analyst's perspective.
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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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