{
    "CVE_data_meta": {
        "ASSIGNER": "security@ubuntu.com",
        "DATE_PUBLIC": "2018-08-21T00:00:00.000Z",
        "ID": "CVE-2018-6557",
        "STATE": "PUBLIC",
        "TITLE": "Insecure temporary file use in base-files"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "base-files",
                                "version": {
                                    "version_data": [
                                        {
                                            "affected": "<",
                                            "version_value": "10.1ubuntu2.2"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Ubuntu"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Sander Bos"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The MOTD update script in the base-files package in Ubuntu 18.04 LTS before 10.1ubuntu2.2, and Ubuntu 18.10 before 10.1ubuntu6 incorrectly handled temporary files. A local attacker could use this issue to cause a denial of service, or possibly escalate privileges if kernel symlink restrictions were disabled."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Insecure Temporary File"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "USN-3748-1",
                "refsource": "UBUNTU",
                "url": "https://usn.ubuntu.com/3748-1/"
            },
            {
                "name": "1041530",
                "refsource": "SECTRACK",
                "url": "http://www.securitytracker.com/id/1041530"
            },
            {
                "name": "105148",
                "refsource": "BID",
                "url": "http://www.securityfocus.com/bid/105148"
            }
        ]
    },
    "source": {
        "discovery": "EXTERNAL"
    }
}