CVE-2012-5533 (GCVE-0-2012-5533)

Vulnerability from cvelistv5 – Published: 2012-11-24 20:00 – Updated: 2024-08-06 21:05
VLAI
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.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
Date Public
2012-11-21 00:00
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    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2012-5533\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2012-11-24T20:55:04.307\",\"lastModified\":\"2026-04-29T01:13:23.040\",\"vulnStatus\":\"Modified\",\"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\\\".\"}],\"metrics\":{\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-399\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"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\"}]}]}],\"references\":[{\"url\":\"http://download.lighttpd.net/lighttpd/security/lighttpd-1.4.31_fix_connection_header_dos.patch\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Patch\"]},{\"url\":\"http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2012_01.txt\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor Advisory\"]},{\"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\"},{\"url\":\"http://secunia.com/advisories/51268\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://secunia.com/advisories/51298\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://www.exploit-db.com/exploits/22902\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Exploit\"]},{\"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\"},{\"url\":\"http://www.securityfocus.com/bid/56619\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Exploit\"]},{\"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\":\"secalert@redhat.com\"},{\"url\":\"http://download.lighttpd.net/lighttpd/security/lighttpd-1.4.31_fix_connection_header_dos.patch\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2012_01.txt\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"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\"},{\"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\":[\"Vendor Advisory\"]},{\"url\":\"http://www.exploit-db.com/exploits/22902\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\"]},{\"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\"},{\"url\":\"http://www.securityfocus.com/bid/56619\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\"]},{\"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\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}],\"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.\\\"\"}}"
  }
}


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Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.