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
References
Date Public
2012-11-21 00:00
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T21:05:47.345Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[oss-security] 20121121 lighttpd 1.4.32 released, fixing CVE-2012-5533",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2012/11/21/1"
          },
          {
            "name": "openSUSE-SU-2012:1532",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-updates/2012-11/msg00044.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2012_01.txt"
          },
          {
            "name": "22902",
            "tags": [
              "exploit",
              "x_refsource_EXPLOIT-DB",
              "x_transferred"
            ],
            "url": "http://www.exploit-db.com/exploits/22902"
          },
          {
            "name": "1027802",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id?1027802"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://download.lighttpd.net/lighttpd/security/lighttpd-1.4.31_fix_connection_header_dos.patch"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.org/files/118282/Simple-Lighttpd-1.4.31-Denial-Of-Service.html"
          },
          {
            "name": "51268",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/51268"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0345"
          },
          {
            "name": "87623",
            "tags": [
              "vdb-entry",
              "x_refsource_OSVDB",
              "x_transferred"
            ],
            "url": "http://osvdb.org/87623"
          },
          {
            "name": "HPSBGN03191",
            "tags": [
              "vendor-advisory",
              "x_refsource_HP",
              "x_transferred"
            ],
            "url": "http://marc.info/?l=bugtraq\u0026m=141576815022399\u0026w=2"
          },
          {
            "name": "MDVSA-2013:100",
            "tags": [
              "vendor-advisory",
              "x_refsource_MANDRIVA",
              "x_transferred"
            ],
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:100"
          },
          {
            "name": "lighttpd-httprequestsplitvalue-dos(80213)",
            "tags": [
              "vdb-entry",
              "x_refsource_XF",
              "x_transferred"
            ],
            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/80213"
          },
          {
            "name": "51298",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/51298"
          },
          {
            "name": "openSUSE-SU-2014:0074",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-updates/2014-01/msg00051.html"
          },
          {
            "name": "56619",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/56619"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2012-11-21T00:00:00.000Z",
      "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."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-08-28T12:57:01.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "[oss-security] 20121121 lighttpd 1.4.32 released, fixing CVE-2012-5533",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2012/11/21/1"
        },
        {
          "name": "openSUSE-SU-2012:1532",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-updates/2012-11/msg00044.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2012_01.txt"
        },
        {
          "name": "22902",
          "tags": [
            "exploit",
            "x_refsource_EXPLOIT-DB"
          ],
          "url": "http://www.exploit-db.com/exploits/22902"
        },
        {
          "name": "1027802",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id?1027802"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://download.lighttpd.net/lighttpd/security/lighttpd-1.4.31_fix_connection_header_dos.patch"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.org/files/118282/Simple-Lighttpd-1.4.31-Denial-Of-Service.html"
        },
        {
          "name": "51268",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/51268"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0345"
        },
        {
          "name": "87623",
          "tags": [
            "vdb-entry",
            "x_refsource_OSVDB"
          ],
          "url": "http://osvdb.org/87623"
        },
        {
          "name": "HPSBGN03191",
          "tags": [
            "vendor-advisory",
            "x_refsource_HP"
          ],
          "url": "http://marc.info/?l=bugtraq\u0026m=141576815022399\u0026w=2"
        },
        {
          "name": "MDVSA-2013:100",
          "tags": [
            "vendor-advisory",
            "x_refsource_MANDRIVA"
          ],
          "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:100"
        },
        {
          "name": "lighttpd-httprequestsplitvalue-dos(80213)",
          "tags": [
            "vdb-entry",
            "x_refsource_XF"
          ],
          "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/80213"
        },
        {
          "name": "51298",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/51298"
        },
        {
          "name": "openSUSE-SU-2014:0074",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-updates/2014-01/msg00051.html"
        },
        {
          "name": "56619",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/56619"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2012-5533",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "[oss-security] 20121121 lighttpd 1.4.32 released, fixing CVE-2012-5533",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2012/11/21/1"
            },
            {
              "name": "openSUSE-SU-2012:1532",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-updates/2012-11/msg00044.html"
            },
            {
              "name": "http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2012_01.txt",
              "refsource": "CONFIRM",
              "url": "http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2012_01.txt"
            },
            {
              "name": "22902",
              "refsource": "EXPLOIT-DB",
              "url": "http://www.exploit-db.com/exploits/22902"
            },
            {
              "name": "1027802",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id?1027802"
            },
            {
              "name": "http://download.lighttpd.net/lighttpd/security/lighttpd-1.4.31_fix_connection_header_dos.patch",
              "refsource": "MISC",
              "url": "http://download.lighttpd.net/lighttpd/security/lighttpd-1.4.31_fix_connection_header_dos.patch"
            },
            {
              "name": "http://packetstormsecurity.org/files/118282/Simple-Lighttpd-1.4.31-Denial-Of-Service.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.org/files/118282/Simple-Lighttpd-1.4.31-Denial-Of-Service.html"
            },
            {
              "name": "51268",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/51268"
            },
            {
              "name": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0345",
              "refsource": "CONFIRM",
              "url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0345"
            },
            {
              "name": "87623",
              "refsource": "OSVDB",
              "url": "http://osvdb.org/87623"
            },
            {
              "name": "HPSBGN03191",
              "refsource": "HP",
              "url": "http://marc.info/?l=bugtraq\u0026m=141576815022399\u0026w=2"
            },
            {
              "name": "MDVSA-2013:100",
              "refsource": "MANDRIVA",
              "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:100"
            },
            {
              "name": "lighttpd-httprequestsplitvalue-dos(80213)",
              "refsource": "XF",
              "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/80213"
            },
            {
              "name": "51298",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/51298"
            },
            {
              "name": "openSUSE-SU-2014:0074",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-updates/2014-01/msg00051.html"
            },
            {
              "name": "56619",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/56619"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2012-5533",
    "datePublished": "2012-11-24T20:00:00.000Z",
    "dateReserved": "2012-10-24T00:00:00.000Z",
    "dateUpdated": "2024-08-06T21:05:47.345Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2012-5533",
      "date": "2026-10-01",
      "epss": "0.12038",
      "percentile": "0.96017"
    },
    "nvd": {
      "cve": {
        "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"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-11-21T12:48:51+00:00",
      "cve": "CVE-2012-5533",
      "id": "CVE-2012-5533",
      "initial_release_date": "2012-11-21T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "lighttpd: Denial of Service via malformed Connection headers",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2012/cve-2012-5533.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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…

Loading…

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…