FKIE_CVE-2012-5533
Vulnerability from fkie_nvd - Published: 2012-11-24 20:55 - Updated: 2026-06-16 23:46
Severity
Summary
The http_request_split_value function in request.c in lighttpd before 1.4.32 allows remote attackers to cause a denial of service (infinite loop) via a request with a header containing an empty token, as demonstrated using the "Connection: TE,,Keep-Alive" header.
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:lighttpd:lighttpd:1.4.31:*:*:*:*:*:*:*",
"matchCriteriaId": "EEA16D25-3D16-435F-B704-50013009F0AF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:lighttpd:lighttpd:1.4.32:*:*:*:*:*:*:*",
"matchCriteriaId": "68C9A1B6-B5B1-4208-9054-C24091D90B6F",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The http_request_split_value function in request.c in lighttpd before 1.4.32 allows remote attackers to cause a denial of service (infinite loop) via a request with a header containing an empty token, as demonstrated using the \"Connection: TE,,Keep-Alive\" header."
},
{
"lang": "es",
"value": "La funci\u00f3n http_request_split_value en request.c en lighttpd en versiones anteriores a 1.4.32 permite a atacantes remotos provocar una denegaci\u00f3n de servicio (bucle infinito) a trav\u00e9s de una petici\u00f3n con una cabecera que contiene un token vac\u00edo, tal como se demuestra utilizando la cabecera \"Connection: TE,,Keep-Alive\"."
}
],
"evaluatorImpact": "Per: http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2012_01.txt\r\n\r\n\" Affected versions\r\n-------------------\r\n\r\nOnly 1.4.31; on the other hand versions before 1.4.31 include the \"invalid read\" bug.\"",
"id": "CVE-2012-5533",
"lastModified": "2026-06-16T23:46:57.613",
"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": "2012-11-24T20:55:04.307",
"references": [
{
"source": "secalert@redhat.com",
"tags": [
"Patch"
],
"url": "http://download.lighttpd.net/lighttpd/security/lighttpd-1.4.31_fix_connection_header_dos.patch"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2012_01.txt"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.opensuse.org/opensuse-updates/2012-11/msg00044.html"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.opensuse.org/opensuse-updates/2014-01/msg00051.html"
},
{
"source": "secalert@redhat.com",
"url": "http://marc.info/?l=bugtraq\u0026m=141576815022399\u0026w=2"
},
{
"source": "secalert@redhat.com",
"url": "http://osvdb.org/87623"
},
{
"source": "secalert@redhat.com",
"url": "http://packetstormsecurity.org/files/118282/Simple-Lighttpd-1.4.31-Denial-Of-Service.html"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/51268"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/51298"
},
{
"source": "secalert@redhat.com",
"tags": [
"Exploit"
],
"url": "http://www.exploit-db.com/exploits/22902"
},
{
"source": "secalert@redhat.com",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:100"
},
{
"source": "secalert@redhat.com",
"url": "http://www.openwall.com/lists/oss-security/2012/11/21/1"
},
{
"source": "secalert@redhat.com",
"tags": [
"Exploit"
],
"url": "http://www.securityfocus.com/bid/56619"
},
{
"source": "secalert@redhat.com",
"url": "http://www.securitytracker.com/id?1027802"
},
{
"source": "secalert@redhat.com",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/80213"
},
{
"source": "secalert@redhat.com",
"url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0345"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "http://download.lighttpd.net/lighttpd/security/lighttpd-1.4.31_fix_connection_header_dos.patch"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2012_01.txt"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-updates/2012-11/msg00044.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-updates/2014-01/msg00051.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://marc.info/?l=bugtraq\u0026m=141576815022399\u0026w=2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://osvdb.org/87623"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://packetstormsecurity.org/files/118282/Simple-Lighttpd-1.4.31-Denial-Of-Service.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/51268"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/51298"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit"
],
"url": "http://www.exploit-db.com/exploits/22902"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:100"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2012/11/21/1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit"
],
"url": "http://www.securityfocus.com/bid/56619"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securitytracker.com/id?1027802"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/80213"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0345"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-399"
}
],
"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…