CVE-2021-22999 (GCVE-0-2021-22999)

Vulnerability from cvelistv5 – Published: 2021-03-31 17:29 – Updated: 2024-08-03 18:58
VLAI
Summary
On versions 15.0.x before 15.1.0 and 14.1.x before 14.1.4, the BIG-IP system provides an option to connect HTTP/2 clients to HTTP/1.x servers. When a client is slow to accept responses and it closes a connection prematurely, the BIG-IP system may indefinitely retain some streams unclosed. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • DoS
Assigner
References
Impacted products
Vendor Product Version CPE status
n/a BIG-IP Affected: 15.0.x before 15.1.0, 14.1.x before 14.1.4
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:58:26.073Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://support.f5.com/csp/article/K02333782"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "BIG-IP",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "15.0.x before 15.1.0, 14.1.x before 14.1.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "On versions 15.0.x before 15.1.0 and 14.1.x before 14.1.4, the BIG-IP system provides an option to connect HTTP/2 clients to HTTP/1.x servers. When a client is slow to accept responses and it closes a connection prematurely, the BIG-IP system may indefinitely retain some streams unclosed. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "DoS",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-31T17:29:56.000Z",
        "orgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
        "shortName": "f5"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://support.f5.com/csp/article/K02333782"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "f5sirt@f5.com",
          "ID": "CVE-2021-22999",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "BIG-IP",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "15.0.x before 15.1.0, 14.1.x before 14.1.4"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "On versions 15.0.x before 15.1.0 and 14.1.x before 14.1.4, the BIG-IP system provides an option to connect HTTP/2 clients to HTTP/1.x servers. When a client is slow to accept responses and it closes a connection prematurely, the BIG-IP system may indefinitely retain some streams unclosed. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "DoS"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://support.f5.com/csp/article/K02333782",
              "refsource": "MISC",
              "url": "https://support.f5.com/csp/article/K02333782"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab",
    "assignerShortName": "f5",
    "cveId": "CVE-2021-22999",
    "datePublished": "2021-03-31T17:29:56.000Z",
    "dateReserved": "2021-01-06T00:00:00.000Z",
    "dateUpdated": "2024-08-03T18:58:26.073Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-22999",
      "date": "2026-09-30",
      "epss": "0.00961",
      "percentile": "0.60136"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "FB553A20-D521-4A32-AD49-8FFD5A95E684",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "FC5CA1E2-341C-42A9-88AC-E6C83DED0B9D",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "DD3FC6D2-5816-47C0-81AE-DED62570F090",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "16EBA08B-8FBD-47BE-A5BE-F5145788E8CB",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "DB183373-A897-43DF-A544-364E59358F30",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "E916F91A-28F6-4CF2-A5EA-E4F4A2598039",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "F2442894-A473-49A5-95B6-6312C3407FE6",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "9228FA0A-8745-4731-A214-5A8AC0AA902A",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "78F5DCAD-BE4E-4D57-82CD-ADAB32691A9E",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "8BC7ABB7-2FA9-42CA-9BEF-241A91F317FF",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "8B318D4F-0D42-46CD-A5A9-02337BB1D2F2",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "E08E3F72-4CEF-4607-8B27-515E6471B9D1",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "AE2899E6-ABEF-4B61-AB8D-AF060D571196",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "9B58CDE9-5ADF-451E-B1F2-25C0954995B8",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "F7C6025C-7283-4568-929B-CFA11423E179",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "9BE59364-3DB3-4528-AFC4-D3A39872514D",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "BBBAD42C-06D5-437F-AB92-1DCC23C1A78B",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "F14F10D9-4F2D-4C6D-8B0C-9775ED35DFEF",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "3DB5F9D2-C452-4469-9626-15FA11960A9C",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "14CEF743-6C3B-4D90-99BF-6A27B37ADAEA",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "57388787-F9DF-4930-ACBC-F3D1DAA53190",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "542EB351-79B1-4A9D-A5A1-2F3E0E88963C",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "0AF0D639-0210-47D0-8680-6E09F0111D5D",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "895E610D-52F6-45CA-B205-D110A1DC6BEC",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "704DF342-2CB5-4791-BF30-294D07B53653",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "4B114C6C-E950-4B75-B341-022799ABBACF",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "C3FE49A0-46B4-49A1-92A4-1BEA5BF48CDF",
                  "versionEndExcluding": "14.1.4",
                  "versionStartIncluding": "14.1.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "E71B1ACE-371A-4B0E-9BF0-8357E4C773E2",
                  "versionEndExcluding": "15.1.0",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "On versions 15.0.x before 15.1.0 and 14.1.x before 14.1.4, the BIG-IP system provides an option to connect HTTP/2 clients to HTTP/1.x servers. When a client is slow to accept responses and it closes a connection prematurely, the BIG-IP system may indefinitely retain some streams unclosed. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated."
        },
        {
          "lang": "es",
          "value": "En las versiones 15.0.x anteriores a 15.1.0 y 14.1.x anteriores a 14.1.4, el sistema BIG-IP ofrece una opci\u00f3n para conectar clientes HTTP/2 a servidores HTTP/1.x.\u0026#xa0;Cuando un cliente tarda en aceptar respuestas y cierra una conexi\u00f3n prematuramente, el sistema BIG-IP puede retener indefinidamente algunos flujos sin cerrar.\u0026#xa0;Nota: No se eval\u00faan las versiones de software que han alcanzado End of Software Development (EoSD)."
        }
      ],
      "id": "CVE-2021-22999",
      "lastModified": "2024-11-21T05:51:07.523",
      "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
          }
        ],
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 3.9,
            "impactScore": 3.6,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2021-03-31T18:15:15.160",
      "references": [
        {
          "source": "f5sirt@f5.com",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "https://support.f5.com/csp/article/K02333782"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Vendor Advisory"
          ],
          "url": "https://support.f5.com/csp/article/K02333782"
        }
      ],
      "sourceIdentifier": "f5sirt@f5.com",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "NVD-CWE-noinfo"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FB553A20-D521-4A32-AD49-8FFD5A95E684",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FC5CA1E2-341C-42A9-88AC-E6C83DED0B9D",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DD3FC6D2-5816-47C0-81AE-DED62570F090",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "16EBA08B-8FBD-47BE-A5BE-F5145788E8CB",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DB183373-A897-43DF-A544-364E59358F30",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E916F91A-28F6-4CF2-A5EA-E4F4A2598039",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "F2442894-A473-49A5-95B6-6312C3407FE6",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9228FA0A-8745-4731-A214-5A8AC0AA902A",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "78F5DCAD-BE4E-4D57-82CD-ADAB32691A9E",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "8BC7ABB7-2FA9-42CA-9BEF-241A91F317FF",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "8B318D4F-0D42-46CD-A5A9-02337BB1D2F2",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E08E3F72-4CEF-4607-8B27-515E6471B9D1",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "AE2899E6-ABEF-4B61-AB8D-AF060D571196",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9B58CDE9-5ADF-451E-B1F2-25C0954995B8",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "F7C6025C-7283-4568-929B-CFA11423E179",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "9BE59364-3DB3-4528-AFC4-D3A39872514D",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "BBBAD42C-06D5-437F-AB92-1DCC23C1A78B",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "F14F10D9-4F2D-4C6D-8B0C-9775ED35DFEF",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3DB5F9D2-C452-4469-9626-15FA11960A9C",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "14CEF743-6C3B-4D90-99BF-6A27B37ADAEA",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "57388787-F9DF-4930-ACBC-F3D1DAA53190",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "542EB351-79B1-4A9D-A5A1-2F3E0E88963C",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0AF0D639-0210-47D0-8680-6E09F0111D5D",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "895E610D-52F6-45CA-B205-D110A1DC6BEC",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "704DF342-2CB5-4791-BF30-294D07B53653",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "4B114C6C-E950-4B75-B341-022799ABBACF",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C3FE49A0-46B4-49A1-92A4-1BEA5BF48CDF",
                    "versionEndExcluding": "14.1.4",
                    "versionStartIncluding": "14.1.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E71B1ACE-371A-4B0E-9BF0-8357E4C773E2",
                    "versionEndExcluding": "15.1.0",
                    "versionStartIncluding": "15.0.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "On versions 15.0.x before 15.1.0 and 14.1.x before 14.1.4, the BIG-IP system provides an option to connect HTTP/2 clients to HTTP/1.x servers. When a client is slow to accept responses and it closes a connection prematurely, the BIG-IP system may indefinitely retain some streams unclosed. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated."
          },
          {
            "lang": "es",
            "value": "En las versiones 15.0.x anteriores a 15.1.0 y 14.1.x anteriores a 14.1.4, el sistema BIG-IP ofrece una opci\u00f3n para conectar clientes HTTP/2 a servidores HTTP/1.x.\u0026#xa0;Cuando un cliente tarda en aceptar respuestas y cierra una conexi\u00f3n prematuramente, el sistema BIG-IP puede retener indefinidamente algunos flujos sin cerrar.\u0026#xa0;Nota: No se eval\u00faan las versiones de software que han alcanzado End of Software Development (EoSD)."
          }
        ],
        "id": "CVE-2021-22999",
        "lastModified": "2024-11-21T05:51:07.523",
        "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
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2021-03-31T18:15:15.160",
        "references": [
          {
            "source": "f5sirt@f5.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://support.f5.com/csp/article/K02333782"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://support.f5.com/csp/article/K02333782"
          }
        ],
        "sourceIdentifier": "f5sirt@f5.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-03-27T14:47:37+00:00",
      "cve": "CVE-2021-22999",
      "id": "CVE-2021-22999",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2021-22999",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-22999.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
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.



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.