{
    "CVE_data_meta": {
        "AKA": "",
        "ASSIGNER": "security@ubuntu.com",
        "DATE_PUBLIC": "2019-10-30T07:05:00.000Z",
        "ID": "CVE-2019-15790",
        "STATE": "PUBLIC",
        "TITLE": "Apport reads PID files with elevated privileges"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Apport",
                                "version": {
                                    "version_data": [
                                        {
                                            "platform": "",
                                            "version_affected": "<",
                                            "version_name": "2.14.1",
                                            "version_value": "2.14.1-0ubuntu3.29+esm3"
                                        },
                                        {
                                            "platform": "",
                                            "version_affected": "<",
                                            "version_name": "2.20.1",
                                            "version_value": "2.20.1-0ubuntu2.22"
                                        },
                                        {
                                            "platform": "",
                                            "version_affected": "<",
                                            "version_name": "2.20.9",
                                            "version_value": "2.20.9-0ubuntu7.12"
                                        },
                                        {
                                            "platform": "",
                                            "version_affected": "<",
                                            "version_name": "2.20.11",
                                            "version_value": "2.20.11-0ubuntu8.6"
                                        },
                                        {
                                            "platform": "",
                                            "version_affected": "<",
                                            "version_name": "2.20.11",
                                            "version_value": "2.20.11-0ubuntu16"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Canonical"
                }
            ]
        }
    },
    "configuration": [],
    "credit": [
        {
            "lang": "eng",
            "value": "Kevin Backhouse"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Apport reads and writes information on a crashed process to /proc/pid with elevated privileges. Apport then determines which user the crashed process belongs to by reading /proc/pid through get_pid_info() in data/apport. An unprivileged user could exploit this to read information about a privileged running process by exploiting PID recycling. This information could then be used to obtain ASLR offsets for a process with an existing memory corruption vulnerability. The initial fix introduced regressions in the Python Apport library due to a missing argument in Report.add_proc_environ in apport/report.py. It also caused an autopkgtest failure when reading /proc/pid and with Python 2 compatibility by reading /proc maps. The initial and subsequent regression fixes are in 2.20.11-0ubuntu16, 2.20.11-0ubuntu8.6, 2.20.9-0ubuntu7.12, 2.20.1-0ubuntu2.22 and 2.14.1-0ubuntu3.29+esm3."
            }
        ]
    },
    "exploit": [],
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 2.8,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-250 Execution with Unnecessary Privileges"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "CONFIRM",
                "name": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1839795",
                "url": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1839795"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://usn.ubuntu.com/4171-1/",
                "url": "https://usn.ubuntu.com/4171-1/"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://usn.ubuntu.com/4171-2/",
                "url": "https://usn.ubuntu.com/4171-2/"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://usn.ubuntu.com/4171-3/",
                "url": "https://usn.ubuntu.com/4171-3/"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://usn.ubuntu.com/4171-4/",
                "url": "https://usn.ubuntu.com/4171-4/"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://usn.ubuntu.com/4171-5/",
                "url": "https://usn.ubuntu.com/4171-5/"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1850929",
                "url": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1850929"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1851806",
                "url": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1851806"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://bugs.launchpad.net/apport/+bug/1854237",
                "url": "https://bugs.launchpad.net/apport/+bug/1854237"
            },
            {
                "refsource": "MISC",
                "name": "http://packetstormsecurity.com/files/172858/Ubuntu-Apport-Whoopsie-DoS-Integer-Overflow.html",
                "url": "http://packetstormsecurity.com/files/172858/Ubuntu-Apport-Whoopsie-DoS-Integer-Overflow.html"
            }
        ]
    },
    "solution": [],
    "source": {
        "advisory": "https://usn.ubuntu.com/4171-1/",
        "defect": [
            "https://launchpad.net/bugs/1839795"
        ],
        "discovery": "EXTERNAL"
    },
    "work_around": []
}