{
  "document": {
    "acknowledgments": [
      {
        "summary": "This vulnerability was found during the resolution of a Cisco TAC support case."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in field-programmable gate array (FPGA) ingress buffer management for the Cisco Firepower 9000 Series with the Cisco Firepower 2-port 100G double-width network module (PID: FPR9K-DNM-2X100G) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. Manual intervention may be required before a device will resume normal operations.\r\n\r\nThe vulnerability is due to a logic error in the FPGA related to the processing of different types of input packets. An attacker could exploit this vulnerability by being on the adjacent subnet and sending a crafted sequence of input packets to a specific interface on an affected device. A successful exploit could allow the attacker to cause a queue wedge condition on the interface. When a wedge occurs, the affected device will stop processing any additional packets that are received on the wedged interface.\r\n\r\nThere are no workarounds that address this vulnerability.\r\n\r\nThis advisory is available at the following link:\r\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-firpwr-dos [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-firpwr-dos\"]",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "This vulnerability is specific to the Cisco Firepower 9000 Series with the Cisco Firepower 2-port 100G double-width network module installed, which is PID FPR9K-DNM-2X100G. The fix for this vulnerability is not an FXOS Software upgrade; it is an FPGA firmware upgrade.",
        "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\nFirepower 2100 Series\r\nFirepower 4100 Series",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "On devices where this vulnerability is exploited, the input discard or overrrun interface counters will increase exponentially. The administrator can check for this condition by using the show interface command at the CLI. When one or both of these counters increment, this is an indication that no traffic is being processed on the interface.\r\n\r\n\r\nFp9000(fxos)# show interface eth2/1\r\nEthernet2/1 is up  Dedicated Interface    Hardware: 100000 Ethernet, address: 70db.9819.a7b4 (bia 70db.9819.a7b4)    Description: U: Uplink    .    .    .      RX      0 unicast packets  425 multicast packets  0 broadcast packets      425 input packets  57370 bytes      0 jumbo packets  0 storm suppression bytes      0 runts  0 giants  0 CRC  0 no buffer      0 input error  0 short frame  0 overrun   0 underrun  0 ignored      0 watchdog  0 bad etype drop  0 bad proto drop  0 if down drop      0 input with dribble  425 input discard            0 Rx pause\r\n    The device may need to be rebooted to clear this condition. Contact the Cisco Technical Assistance Center (TAC) for further assistance.",
        "title": "Indicators of Compromise"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address this vulnerability.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "This vulnerability is fixed by an upgrade to the FPGA firmware. Customers are advised to follow the procedure outlined in the Firmware Upgrade [\"https://www.cisco.com/c/en/us/td/docs/security/firepower/fxos/fxos241/cli-guide/b_CLI_ConfigGuide_FXOS_241/image_management.html#task_2279C01A2AF8466D80F0A5C0D129E1EB\"] section of the Cisco Firepower 4100/9300 FXOS CLI Configuration Guide.\r\n\r\nThis procedure works for FXOS Software Releases 2.2.2 or later. A customer on an earlier release should upgrade to Software Release 2.2.2 (or later) or contact the Cisco TAC for assistance.\r\n\r\nWhen considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts 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.",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"https://sec.cloudapps.cisco.com/security/center/resources/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 the resolution of a Cisco TAC support case.",
        "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": "Emergency Support:\r\n+1 877 228 7302 (toll-free within North America)\r\n+1 408 525 6532 (International direct-dial)\r\nNon-emergency Support:\r\nEmail: psirt@cisco.com\r\nSupport requests that are received via e-mail are typically acknowledged within 48 hours.",
      "issuing_authority": "Cisco product security incident response is the responsibility of the Cisco Product Security Incident Response Team (PSIRT). The Cisco PSIRT is a dedicated, global team that manages the receipt, investigation, and public reporting of security vulnerability information that is related to Cisco products and networks. The on-call Cisco PSIRT works 24x7 with Cisco customers, independent security researchers, consultants, industry organizations, and other vendors to identify possible security issues with Cisco products and networks.\r\nMore information can be found in Cisco Security Vulnerability Policy available at https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "Cisco Firepower 9000 Series Firepower 2-Port 100G Double-Width Network Module Queue Wedge Denial of Service Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-firpwr-dos"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-firpwr-dos",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-firpwr-dos"
      },
      {
        "category": "external",
        "summary": "Firmware Upgrade",
        "url": "https://www.cisco.com/c/en/us/td/docs/security/firepower/fxos/fxos241/cli-guide/b_CLI_ConfigGuide_FXOS_241/image_management.html#task_2279C01A2AF8466D80F0A5C0D129E1EB"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisories and Alerts page",
        "url": "https://www.cisco.com/go/psirt"
      },
      {
        "category": "external",
        "summary": "Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      }
    ],
    "title": "Cisco Firepower 9000 Series Firepower 2-Port 100G Double-Width Network Module Queue Wedge Denial of Service Vulnerability",
    "tracking": {
      "current_release_date": "2019-02-20T16:00:00+00:00",
      "generator": {
        "date": "2022-09-03T03:15:03+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-20190220-firpwr-dos",
      "initial_release_date": "2019-02-20T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2019-02-20T15:15:55+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_family",
            "name": "Cisco Firepower Extensible Operating System (FXOS)",
            "product": {
              "name": "Cisco Firepower Extensible Operating System (FXOS) ",
              "product_id": "CSAFPID-225888"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-1700",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvn57812"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-225888"
        ]
      },
      "release_date": "2019-02-20T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-225888"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-225888"
          ]
        }
      ],
      "title": "Cisco Firepower 9000 Series Firepower 2-Port 100G Double Width Network Module Queue Wedge Denial of Service Vulnerability"
    }
  ]
}