{
    "CVE_data_meta": {
        "ASSIGNER": "psirt@paloaltonetworks.com",
        "DATE_PUBLIC": "2020-07-08T16:00:00.000Z",
        "ID": "CVE-2020-2031",
        "STATE": "PUBLIC",
        "TITLE": "PAN-OS: Integer underflow in the management interface"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "PAN-OS",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "9.1",
                                            "version_value": "9.1.3"
                                        },
                                        {
                                            "version_affected": "!>=",
                                            "version_name": "9.1",
                                            "version_value": "9.1.3"
                                        },
                                        {
                                            "version_affected": "!",
                                            "version_name": "9.0",
                                            "version_value": "9.0.*"
                                        },
                                        {
                                            "version_affected": "!",
                                            "version_name": "8.1",
                                            "version_value": "8.1.*"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Palo Alto Networks"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "This issue was discovered by Jin Chen of Palo Alto Networks during internal security review."
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "An integer underflow vulnerability in the dnsproxyd component of the PAN-OS management interface allows authenticated administrators to issue a command from the command line interface that causes the component to stop responding. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 9.1 versions earlier than PAN-OS 9.1.3. This issue does not impact PAN-OS 8.1, PAN-OS 9.0, or Prisma Access services."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 4.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-191 Integer Underflow (Wrap or Wraparound)"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://security.paloaltonetworks.com/CVE-2020-2031",
                "name": "https://security.paloaltonetworks.com/CVE-2020-2031"
            }
        ]
    },
    "solution": [
        {
            "lang": "eng",
            "value": "This issue is fixed in PAN-OS 9.1.3 and all later PAN-OS versions."
        }
    ],
    "source": {
        "defect": [
            "PAN-100000"
        ],
        "discovery": "INTERNAL"
    },
    "timeline": [
        {
            "lang": "eng",
            "time": "2020-07-08T16:00:00.000Z",
            "value": "Initial publication"
        }
    ],
    "work_around": [
        {
            "lang": "eng",
            "value": "This issue impacts the PAN-OS management interface but you can mitigate the impact of this issue by following best practices for securing the PAN-OS management interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at https://docs.paloaltonetworks.com/best-practices."
        }
    ]
}