{
    "CVE_data_meta": {
        "ASSIGNER": "psirt@cisco.com",
        "DATE_PUBLIC": "2019-03-27T16:00:00-0700",
        "ID": "CVE-2019-1740",
        "STATE": "PUBLIC",
        "TITLE": "Cisco IOS and IOS XE Software Network-Based Application Recognition Denial of Service Vulnerabilities"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Cisco IOS and Cisco IOS-XE Software",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.0S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.1S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.0aS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.1aS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.2S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.2aS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.0bS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.0cS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.3S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.2bS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.3aS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.4S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.4aS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.4bS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.4gS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.5S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.4cS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.4dS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.4eS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.16.5aS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.17.0S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.17.1S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.17.2S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.17.1aS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.17.3S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.17.4S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.2.0JA"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "16.2.1"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "16.2.2"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "16.3.1"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "16.3.2"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "16.3.3"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "16.3.1a"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "16.3.4"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "16.4.1"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "16.4.2"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "16.4.3"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "16.5.1"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "16.5.1a"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "16.5.1b"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.0aS"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.0S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.1S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.2S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.3S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.4S"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.0SP"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.1SP"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.1aSP"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.1gSP"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.1bSP"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.1cSP"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.2SP"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.1hSP"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.2aSP"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": "3.18.1iSP"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Cisco"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A vulnerability in the Network-Based Application Recognition (NBAR) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. This vulnerability are due to a parsing issue on DNS packets. An attacker could exploit this vulnerability by sending crafted DNS packets through routers that are running an affected version and have NBAR enabled. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition."
            }
        ]
    },
    "exploit": [
        {
            "lang": "eng",
            "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory. "
        }
    ],
    "impact": {
        "cvss": {
            "baseScore": "8.6",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H ",
            "version": "3.0"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-20"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "20190327 Cisco IOS and IOS XE Software Network-Based Application Recognition Denial of Service Vulnerabilities",
                "refsource": "CISCO",
                "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-nbar"
            },
            {
                "refsource": "BID",
                "name": "107597",
                "url": "http://www.securityfocus.com/bid/107597"
            }
        ]
    },
    "source": {
        "advisory": "cisco-sa-20190327-nbar",
        "defect": [
            [
                "CSCvb51688",
                "CSCvc94856",
                "CSCvc99155",
                "CSCvf01501"
            ]
        ],
        "discovery": "INTERNAL"
    }
}