{
  "document": {
    "acknowledgments": [
      {
        "summary": "This vulnerability was found during internal security testing by X.B. of the Cisco Advanced Security Initiatives Group (ASIG)."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in the OSPF version 2 (OSPFv2) feature of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition.\r\n\r\nThis vulnerability is due to improper validation of OSPF updates that are processed by a device. An attacker could exploit this vulnerability by sending a malformed OSPF update to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\n\r\n\r\nThis advisory is part of the March 2024 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: March 2024 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication [\"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75056\"].",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "This vulnerability affects Cisco devices if they are running a vulnerable release of Cisco IOS XE Software and have the OSPF feature with the distribute link-state option enabled.\r\n\r\nFor information about which Cisco software releases are vulnerable, see the Fixed Software [\"#fs\"] section of this advisory.\r\n  Determine the Device Configuration\r\nTo determine whether a device has the OSPF feature with link-state distribution enabled, log in to the device and use the show running-config | include ospf|distribute link-state CLI command. If router ospf \u003cPID\u003e and distribute link-state are displayed, the device is affected by this vulnerability, as shown in the example below:\r\n\r\n\r\nRouter# show running-config | include ospf|distribute link-state\r\nrouter ospf 1\r\n distribute link-state",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect the following Cisco products:\r\n\r\nIOS Software\r\nIOS XR Software\r\nMeraki products\r\nNX-OS Software",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address this vulnerability.\r\n\r\nThere is a mitigation that addresses this vulnerability. As a best practice, configure OSPF authentication so attackers would need to pass authentication to cause this vulnerability. For more information on OSPF authentication, see the IP Routing: OSPF Configuration Guide [\"https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/xe-16/iro-xe-16-book/iro-cfg.html\"].\r\n\r\nWhile this mitigation has been deployed and was proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "Cisco has released free software updates [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#ssu\"] that address the vulnerability described in this advisory. Customers with service contracts that entitle them to regular software updates should obtain security fixes through their usual update channels.\r\n\r\nCustomers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:\r\nhttps://www.cisco.com/c/en/us/products/end-user-license-agreement.html [\"https://www.cisco.com/c/en/us/products/end-user-license-agreement.html\"]\r\n\r\nAdditionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.\r\n\r\nThe Cisco Support and Downloads page [\"https://www.cisco.com/c/en/us/support/index.html\"] on Cisco.com provides information about licensing and downloads. This page can also display customer device support coverage for customers who use the My Devices tool.\r\n\r\nWhen considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.\r\n  Customers Without Service Contracts\r\nCustomers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"]\r\n\r\nCustomers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.\r\n        Cisco IOS and IOS XE Software\r\nTo help customers determine their exposure to vulnerabilities in Cisco IOS and IOS XE Software, Cisco provides the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"]. This tool identifies any Cisco security advisories that impact a specific software release and the earliest release that fixes the vulnerabilities that are described in each advisory (\u201cFirst Fixed\u201d). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities that are described in all the advisories that the Software Checker identifies (\u201cCombined First Fixed\u201d).\r\n\r\nTo use the tool, go to the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] page and follow the instructions. Alternatively, use the following form to determine whether a release is affected by any Cisco Security Advisory. To use the form, follow these steps:\r\n\r\nChoose which advisories the tool will search\u2014only this advisory, only advisories with a Critical or High Security Impact Rating (SIR) [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#asr\"], or all advisories.\r\nEnter a release number\u2014for example, 15.9(3)M2 or 17.3.3.\r\nClick Check.\r\n\r\n       Only this advisory  All Critical and High advisories  All advisories",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.",
        "title": "Vulnerability Policy"
      },
      {
        "category": "general",
        "text": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "This vulnerability was found during internal security testing by X.B. of the Cisco Advanced Security Initiatives Group (ASIG).",
        "title": "Source"
      },
      {
        "category": "legal_disclaimer",
        "text": "THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nA standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.",
        "title": "Legal Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "psirt@cisco.com",
      "issuing_authority": "Cisco PSIRT",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "Cisco IOS XE Software OSPFv2 Denial of Service Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ospf-dos-dR9Sfrxp"
      },
      {
        "category": "external",
        "summary": "Cisco Event Response: March 2024 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication",
        "url": "https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75056"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "IP Routing: OSPF Configuration Guide",
        "url": "https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/configuration/xe-16/iro-xe-16-book/iro-cfg.html"
      },
      {
        "category": "external",
        "summary": "free software updates",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#ssu"
      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html",
        "url": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html"
      },
      {
        "category": "external",
        "summary": "Cisco Support and Downloads page",
        "url": "https://www.cisco.com/c/en/us/support/index.html"
      },
      {
        "category": "external",
        "summary": "considering software upgrades",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisories page",
        "url": "https://www.cisco.com/go/psirt"
      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html",
        "url": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"
      },
      {
        "category": "external",
        "summary": "Cisco Software Checker",
        "url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"
      },
      {
        "category": "external",
        "summary": "Security Impact Rating (SIR)",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#asr"
      },
      {
        "category": "external",
        "summary": "Security Vulnerability Policy",
        "url": "http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html"
      }
    ],
    "title": "Cisco IOS XE Software OSPFv2 Denial of Service Vulnerability",
    "tracking": {
      "current_release_date": "2024-03-27T16:00:00+00:00",
      "generator": {
        "date": "2024-05-10T23:30:08+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-iosxe-ospf-dos-dR9Sfrxp",
      "initial_release_date": "2024-03-27T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2024-03-27T15:55:19+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.5.1",
                    "product": {
                      "name": "17.5.1",
                      "product_id": "CSAFPID-262590"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.5.1a",
                    "product": {
                      "name": "17.5.1a",
                      "product_id": "CSAFPID-282046"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.5.1b",
                    "product": {
                      "name": "17.5.1b",
                      "product_id": "CSAFPID-290596"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.5.1c",
                    "product": {
                      "name": "17.5.1c",
                      "product_id": "CSAFPID-292698"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.5"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.6.1",
                    "product": {
                      "name": "17.6.1",
                      "product_id": "CSAFPID-262592"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.6.2",
                    "product": {
                      "name": "17.6.2",
                      "product_id": "CSAFPID-282117"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.6.1w",
                    "product": {
                      "name": "17.6.1w",
                      "product_id": "CSAFPID-284161"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.6.1a",
                    "product": {
                      "name": "17.6.1a",
                      "product_id": "CSAFPID-284179"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.6.1x",
                    "product": {
                      "name": "17.6.1x",
                      "product_id": "CSAFPID-284740"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.6.3",
                    "product": {
                      "name": "17.6.3",
                      "product_id": "CSAFPID-286409"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.6.1y",
                    "product": {
                      "name": "17.6.1y",
                      "product_id": "CSAFPID-286477"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.6.1z",
                    "product": {
                      "name": "17.6.1z",
                      "product_id": "CSAFPID-286544"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.6.3a",
                    "product": {
                      "name": "17.6.3a",
                      "product_id": "CSAFPID-286594"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.6.4",
                    "product": {
                      "name": "17.6.4",
                      "product_id": "CSAFPID-287087"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.6.1z1",
                    "product": {
                      "name": "17.6.1z1",
                      "product_id": "CSAFPID-290565"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.6.5",
                    "product": {
                      "name": "17.6.5",
                      "product_id": "CSAFPID-290660"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.6.5a",
                    "product": {
                      "name": "17.6.5a",
                      "product_id": "CSAFPID-300850"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.6"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.7.1",
                    "product": {
                      "name": "17.7.1",
                      "product_id": "CSAFPID-277357"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.7.1a",
                    "product": {
                      "name": "17.7.1a",
                      "product_id": "CSAFPID-285329"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.7.1b",
                    "product": {
                      "name": "17.7.1b",
                      "product_id": "CSAFPID-286410"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.7.2",
                    "product": {
                      "name": "17.7.2",
                      "product_id": "CSAFPID-286534"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.7"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.10.1",
                    "product": {
                      "name": "17.10.1",
                      "product_id": "CSAFPID-278018"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.10.1a",
                    "product": {
                      "name": "17.10.1a",
                      "product_id": "CSAFPID-290580"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.10.1b",
                    "product": {
                      "name": "17.10.1b",
                      "product_id": "CSAFPID-292650"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.10"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.8.1",
                    "product": {
                      "name": "17.8.1",
                      "product_id": "CSAFPID-278023"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.8.1a",
                    "product": {
                      "name": "17.8.1a",
                      "product_id": "CSAFPID-286486"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.8"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.9.1",
                    "product": {
                      "name": "17.9.1",
                      "product_id": "CSAFPID-278025"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.9.1w",
                    "product": {
                      "name": "17.9.1w",
                      "product_id": "CSAFPID-286802"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.9.2",
                    "product": {
                      "name": "17.9.2",
                      "product_id": "CSAFPID-288221"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.9.1a",
                    "product": {
                      "name": "17.9.1a",
                      "product_id": "CSAFPID-288247"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.9.1x",
                    "product": {
                      "name": "17.9.1x",
                      "product_id": "CSAFPID-289372"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.9.1y",
                    "product": {
                      "name": "17.9.1y",
                      "product_id": "CSAFPID-290673"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.9.3",
                    "product": {
                      "name": "17.9.3",
                      "product_id": "CSAFPID-290674"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.9.2a",
                    "product": {
                      "name": "17.9.2a",
                      "product_id": "CSAFPID-290675"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.9.1x1",
                    "product": {
                      "name": "17.9.1x1",
                      "product_id": "CSAFPID-292876"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.9.3a",
                    "product": {
                      "name": "17.9.3a",
                      "product_id": "CSAFPID-295198"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.9.1y1",
                    "product": {
                      "name": "17.9.1y1",
                      "product_id": "CSAFPID-299967"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.9"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.11.1",
                    "product": {
                      "name": "17.11.1",
                      "product_id": "CSAFPID-286799"
                    }
                  },
                  {
                    "category": "service_pack",
                    "name": "17.11.1a",
                    "product": {
                      "name": "17.11.1a",
                      "product_id": "CSAFPID-294838"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.11"
              },
              {
                "branches": [
                  {
                    "category": "service_pack",
                    "name": "17.11.99SW",
                    "product": {
                      "name": "17.11.99SW",
                      "product_id": "CSAFPID-296860"
                    }
                  }
                ],
                "category": "product_version",
                "name": "17.11SW"
              }
            ],
            "category": "product_family",
            "name": "Cisco IOS XE Software"
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-20313",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCwf51268"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-262590",
          "CSAFPID-262592",
          "CSAFPID-277357",
          "CSAFPID-278018",
          "CSAFPID-278023",
          "CSAFPID-278025",
          "CSAFPID-282046",
          "CSAFPID-282117",
          "CSAFPID-284161",
          "CSAFPID-284179",
          "CSAFPID-284740",
          "CSAFPID-285329",
          "CSAFPID-286409",
          "CSAFPID-286410",
          "CSAFPID-286477",
          "CSAFPID-286486",
          "CSAFPID-286534",
          "CSAFPID-286544",
          "CSAFPID-286594",
          "CSAFPID-286799",
          "CSAFPID-286802",
          "CSAFPID-287087",
          "CSAFPID-288221",
          "CSAFPID-288247",
          "CSAFPID-289372",
          "CSAFPID-290565",
          "CSAFPID-290580",
          "CSAFPID-290596",
          "CSAFPID-290660",
          "CSAFPID-290673",
          "CSAFPID-290674",
          "CSAFPID-290675",
          "CSAFPID-292650",
          "CSAFPID-292698",
          "CSAFPID-292876",
          "CSAFPID-294838",
          "CSAFPID-295198",
          "CSAFPID-296860",
          "CSAFPID-299967",
          "CSAFPID-300850"
        ]
      },
      "release_date": "2024-03-27T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-262590",
            "CSAFPID-262592",
            "CSAFPID-277357",
            "CSAFPID-278018",
            "CSAFPID-278023",
            "CSAFPID-278025",
            "CSAFPID-282046",
            "CSAFPID-282117",
            "CSAFPID-284161",
            "CSAFPID-284179",
            "CSAFPID-284740",
            "CSAFPID-285329",
            "CSAFPID-286409",
            "CSAFPID-286410",
            "CSAFPID-286477",
            "CSAFPID-286486",
            "CSAFPID-286534",
            "CSAFPID-286544",
            "CSAFPID-286594",
            "CSAFPID-286799",
            "CSAFPID-286802",
            "CSAFPID-287087",
            "CSAFPID-288221",
            "CSAFPID-288247",
            "CSAFPID-289372",
            "CSAFPID-290565",
            "CSAFPID-290580",
            "CSAFPID-290596",
            "CSAFPID-290660",
            "CSAFPID-290673",
            "CSAFPID-290674",
            "CSAFPID-290675",
            "CSAFPID-292650",
            "CSAFPID-292698",
            "CSAFPID-292876",
            "CSAFPID-294838",
            "CSAFPID-295198",
            "CSAFPID-296860",
            "CSAFPID-299967",
            "CSAFPID-300850"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-262590",
            "CSAFPID-262592",
            "CSAFPID-277357",
            "CSAFPID-278018",
            "CSAFPID-278023",
            "CSAFPID-278025",
            "CSAFPID-282046",
            "CSAFPID-282117",
            "CSAFPID-284161",
            "CSAFPID-284179",
            "CSAFPID-284740",
            "CSAFPID-285329",
            "CSAFPID-286409",
            "CSAFPID-286410",
            "CSAFPID-286477",
            "CSAFPID-286486",
            "CSAFPID-286534",
            "CSAFPID-286544",
            "CSAFPID-286594",
            "CSAFPID-286799",
            "CSAFPID-286802",
            "CSAFPID-287087",
            "CSAFPID-288221",
            "CSAFPID-288247",
            "CSAFPID-289372",
            "CSAFPID-290565",
            "CSAFPID-290580",
            "CSAFPID-290596",
            "CSAFPID-290660",
            "CSAFPID-290673",
            "CSAFPID-290674",
            "CSAFPID-290675",
            "CSAFPID-292650",
            "CSAFPID-292698",
            "CSAFPID-292876",
            "CSAFPID-294838",
            "CSAFPID-295198",
            "CSAFPID-296860",
            "CSAFPID-299967",
            "CSAFPID-300850"
          ]
        }
      ],
      "title": "Cisco IOS XE Software OSPF Denial of Service Vulnerbility"
    }
  ]
}

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Cisco Internetwork Operating System (IOS) ist ein Betriebssystem, das f\u00fcr Cisco Ger\u00e4te wie z. B. Router und Switches eingesetzt wird.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Cisco IOS XE ausnutzen, um beliebigen Programmcode auszuf\u00fchren, Sicherheitsvorkehrungen zu umgehen, seine Privilegien zu erweitern oder einen Denial of Service Zustand herbeizuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- CISCO Appliance",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2024-0745 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-0745.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2024-0745 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2024-0745"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2024-03-27",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aux-333WBz8f"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2024-03-27",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dmi-acl-bypass-Xv8FO8Vz"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2024-03-27",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ospf-dos-dR9Sfrxp"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2024-03-27",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-priv-esc-seAx6NLX"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2024-03-27",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xe-sda-edge-dos-qZWuWXWG"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2024-03-27",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-utd-cmd-JbL8KvHT"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2024-03-27",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-wlc-privesc-RjSMrmPK"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2024-03-27",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-mdns-dos-4hv6pBGf"
      }
    ],
    "source_lang": "en-US",
    "title": "Cisco IOS XE: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2024-03-27T23:00:00.000+00:00",
      "generator": {
        "date": "2024-03-28T12:25:54.077+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2024-0745",
      "initial_release_date": "2024-03-27T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2024-03-27T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Cisco IOS XE",
            "product": {
              "name": "Cisco IOS XE",
              "product_id": "T033777",
              "product_identification_helper": {
                "cpe": "cpe:/o:cisco:ios_xe:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-20306",
      "notes": [
        {
          "category": "description",
          "text": "In Cisco IOS XE existiert eine Schwachstelle. Diese ist auf eine unzureichende Validierung von Nutzereingaben zur\u00fcckzuf\u00fchren. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um beliebigen Programmcode auszuf\u00fchren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T033777"
        ]
      },
      "release_date": "2024-03-27T23:00:00Z",
      "title": "CVE-2024-20306"
    },
    {
      "cve": "CVE-2024-20303",
      "notes": [
        {
          "category": "description",
          "text": "In Cisco IOS XE existieren mehrere Schwachstellen. Diese sind auf Fehler beim Umgang mit IPv4 Traffic, Umgang mit eingehendem Traffic, Fehler beim Management von mDNS Eintr\u00e4gen sowie Fehler bei der Validierung von OSPF Updates. Ein entfernter, anonymer Angreifer kann diese Schwachstellen ausnutzen, um einen Denial of Service Zustand herbeizuf\u00fchren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T033777"
        ]
      },
      "release_date": "2024-03-27T23:00:00Z",
      "title": "CVE-2024-20303"
    },
    {
      "cve": "CVE-2024-20309",
      "notes": [
        {
          "category": "description",
          "text": "In Cisco IOS XE existieren mehrere Schwachstellen. Diese sind auf Fehler beim Umgang mit IPv4 Traffic, Umgang mit eingehendem Traffic, Fehler beim Management von mDNS Eintr\u00e4gen sowie Fehler bei der Validierung von OSPF Updates. Ein entfernter, anonymer Angreifer kann diese Schwachstellen ausnutzen, um einen Denial of Service Zustand herbeizuf\u00fchren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T033777"
        ]
      },
      "release_date": "2024-03-27T23:00:00Z",
      "title": "CVE-2024-20309"
    },
    {
      "cve": "CVE-2024-20313",
      "notes": [
        {
          "category": "description",
          "text": "In Cisco IOS XE existieren mehrere Schwachstellen. Diese sind auf Fehler beim Umgang mit IPv4 Traffic, Umgang mit eingehendem Traffic, Fehler beim Management von mDNS Eintr\u00e4gen sowie Fehler bei der Validierung von OSPF Updates. Ein entfernter, anonymer Angreifer kann diese Schwachstellen ausnutzen, um einen Denial of Service Zustand herbeizuf\u00fchren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T033777"
        ]
      },
      "release_date": "2024-03-27T23:00:00Z",
      "title": "CVE-2024-20313"
    },
    {
      "cve": "CVE-2024-20314",
      "notes": [
        {
          "category": "description",
          "text": "In Cisco IOS XE existieren mehrere Schwachstellen. Diese sind auf Fehler beim Umgang mit IPv4 Traffic, Umgang mit eingehendem Traffic, Fehler beim Management von mDNS Eintr\u00e4gen sowie Fehler bei der Validierung von OSPF Updates. Ein entfernter, anonymer Angreifer kann diese Schwachstellen ausnutzen, um einen Denial of Service Zustand herbeizuf\u00fchren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T033777"
        ]
      },
      "release_date": "2024-03-27T23:00:00Z",
      "title": "CVE-2024-20314"
    },
    {
      "cve": "CVE-2024-20278",
      "notes": [
        {
          "category": "description",
          "text": "In Cisco IOS XE existieren mehrere Schwachstellen. Diese sind auf Fehler bei der Kontrolle von Privilegien und Nutzereingaben zur\u00fcckzuf\u00fchren. Ein entfernter, authentisierter Angreifer kann diese Schwachstelle ausnutzen, um seine Privilegien zu erweitern."
        }
      ],
      "product_status": {
        "known_affected": [
          "T033777"
        ]
      },
      "release_date": "2024-03-27T23:00:00Z",
      "title": "CVE-2024-20278"
    },
    {
      "cve": "CVE-2024-20324",
      "notes": [
        {
          "category": "description",
          "text": "In Cisco IOS XE existieren mehrere Schwachstellen. Diese sind auf Fehler bei der Kontrolle von Privilegien und Nutzereingaben zur\u00fcckzuf\u00fchren. Ein entfernter, authentisierter Angreifer kann diese Schwachstelle ausnutzen, um seine Privilegien zu erweitern."
        }
      ],
      "product_status": {
        "known_affected": [
          "T033777"
        ]
      },
      "release_date": "2024-03-27T23:00:00Z",
      "title": "CVE-2024-20324"
    },
    {
      "cve": "CVE-2024-20316",
      "notes": [
        {
          "category": "description",
          "text": "In Cisco IOS XE existiert eine Schwachstelle. Diese besteht aufgrund einem Fehler beim Umgang mit Error-Bedingungen. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, um Sicherheitsvorkehrungen zu umgehen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T033777"
        ]
      },
      "release_date": "2024-03-27T23:00:00Z",
      "title": "CVE-2024-20316"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2024-20313"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-24T21:15:46Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability in the OSPF version 2 (OSPFv2) feature of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of OSPF updates that are processed by a device. An attacker could exploit this vulnerability by sending a malformed OSPF update to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.",
  "id": "GHSA-74jh-9vmj-8f72",
  "modified": "2024-04-24T21:31:58Z",
  "published": "2024-04-24T21:31:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-20313"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ospf-dos-dR9Sfrxp"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "GSD": {
    "alias": "CVE-2024-20313",
    "id": "GSD-2024-20313"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2024-20313"
      ],
      "details": "A vulnerability in the OSPF version 2 (OSPFv2) feature of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of OSPF updates that are processed by a device. An attacker could exploit this vulnerability by sending a malformed OSPF update to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.",
      "id": "GSD-2024-20313",
      "modified": "2023-12-13T01:21:43.083938Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "psirt@cisco.com",
        "ID": "CVE-2024-20313",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Cisco IOS XE Software",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "17.5.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.5.1a"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.6.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.6.2"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.6.1w"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.6.1a"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.6.1x"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.6.3"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.6.1y"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.6.1z"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.6.3a"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.6.4"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.6.1z1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.6.5"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.6.5a"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.7.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.7.1a"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.7.1b"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.7.2"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.10.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.10.1a"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.10.1b"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.8.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.8.1a"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.9.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.9.1w"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.9.2"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.9.1a"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.9.1x"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.9.1y"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.9.3"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.9.2a"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.9.1x1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.9.3a"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.9.1y1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.11.1"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.11.1a"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "17.11.99SW"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Cisco"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "A vulnerability in the OSPF version 2 (OSPFv2) feature of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of OSPF updates that are processed by a device. An attacker could exploit this vulnerability by sending a malformed OSPF update to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition."
          }
        ]
      },
      "exploit": [
        {
          "lang": "en",
          "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-120",
                "lang": "eng",
                "value": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ospf-dos-dR9Sfrxp",
            "refsource": "MISC",
            "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ospf-dos-dR9Sfrxp"
          }
        ]
      },
      "source": {
        "advisory": "cisco-sa-iosxe-ospf-dos-dR9Sfrxp",
        "defects": [
          "CSCwf51268"
        ],
        "discovery": "INTERNAL"
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "descriptions": [
          {
            "lang": "en",
            "value": "A vulnerability in the OSPF version 2 (OSPFv2) feature of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of OSPF updates that are processed by a device. An attacker could exploit this vulnerability by sending a malformed OSPF update to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition."
          },
          {
            "lang": "es",
            "value": "Una vulnerabilidad en la caracter\u00edstica OSPF versi\u00f3n 2 (OSPFv2) del software Cisco IOS XE podr\u00eda permitir que un atacante adyacente no autenticado provoque que un dispositivo afectado se recargue inesperadamente, lo que resultar\u00eda en una condici\u00f3n de denegaci\u00f3n de servicio (DoS). Esta vulnerabilidad se debe a una validaci\u00f3n inadecuada de las actualizaciones OSPF procesadas por un dispositivo. Un atacante podr\u00eda aprovechar esta vulnerabilidad enviando una actualizaci\u00f3n OSPF con formato incorrecto al dispositivo. Un exploit exitoso podr\u00eda permitir al atacante hacer que el dispositivo afectado se recargue, lo que resultar\u00eda en una condici\u00f3n DoS."
          }
        ],
        "id": "CVE-2024-20313",
        "lastModified": "2024-04-25T13:18:20.370",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.4,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 4.0,
              "source": "ykramarz@cisco.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2024-04-24T21:15:46.797",
        "references": [
          {
            "source": "ykramarz@cisco.com",
            "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ospf-dos-dR9Sfrxp"
          }
        ],
        "sourceIdentifier": "ykramarz@cisco.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-120"
              }
            ],
            "source": "ykramarz@cisco.com",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}