{
    "CVE_data_meta": {
        "ASSIGNER": "security@ubuntu.com",
        "ID": "CVE-2021-44731",
        "STATE": "PUBLIC",
        "TITLE": "snapd could be made to escalate privileges and run programs as administrator"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "snapd",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<=",
                                            "version_value": "2.54.2"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Canonical Ltd."
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Qualys Research Team"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap. This could allow a local attacker to gain root privileges by bind-mounting their own contents inside the snap's private mount namespace and causing snap-confine to execute arbitrary code and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1"
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-362 Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization)"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://ubuntu.com/security/notices/USN-5292-1",
                "name": "https://ubuntu.com/security/notices/USN-5292-1"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20220218 CVE-2021-4120: Insufficient validation of snap content interface and layout paths",
                "url": "http://www.openwall.com/lists/oss-security/2022/02/18/2"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2022-82bea71e5a",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3QTBN7LLZISXIA4KU4UKDR27Q5PXDS2U/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2022-5df8b52ba4",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XCGHG6LJAVJJ72TMART6A7N4Z6MSTGI7/"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-5080",
                "url": "https://www.debian.org/security/2022/dsa-5080"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20220223 Re: CVE-2021-44731: Race condition in snap-confine's setup_private_mount()",
                "url": "http://www.openwall.com/lists/oss-security/2022/02/23/1"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20220223 Re: CVE-2021-44731: Race condition in snap-confine's setup_private_mount()",
                "url": "http://www.openwall.com/lists/oss-security/2022/02/23/2"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20221130 Race condition in snap-confine's must_mkdir_and_open_with_perms() (CVE-2022-3328)",
                "url": "http://www.openwall.com/lists/oss-security/2022/11/30/2"
            },
            {
                "refsource": "FULLDISC",
                "name": "20221208 Race condition in snap-confine's must_mkdir_and_open_with_perms() (CVE-2022-3328)",
                "url": "http://seclists.org/fulldisclosure/2022/Dec/4"
            },
            {
                "refsource": "MISC",
                "name": "http://packetstormsecurity.com/files/170176/snap-confine-must_mkdir_and_open_with_perms-Race-Condition.html",
                "url": "http://packetstormsecurity.com/files/170176/snap-confine-must_mkdir_and_open_with_perms-Race-Condition.html"
            }
        ]
    },
    "source": {
        "discovery": "EXTERNAL"
    }
}