{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2023-2612",
        "ASSIGNER": "security@ubuntu.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Jean-Baptiste Cayrou discovered that the shiftfs file system in the Ubuntu Linux kernel contained a race condition when handling inode locking in some situations. A local attacker could use this to cause a denial of service (kernel deadlock)."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-667",
                        "cweId": "CWE-667"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Canonical Ltd.",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "ubuntu-linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "0",
                                            "version_value": "02b47547824b1cd0d55c6744f91886f04de8947e"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/kinetic/commit/?id=02b47547824b1cd0d55c6744f91886f04de8947e",
                "refsource": "MISC",
                "name": "https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/kinetic/commit/?id=02b47547824b1cd0d55c6744f91886f04de8947e"
            },
            {
                "url": "https://ubuntu.com/security/CVE-2023-2612",
                "refsource": "MISC",
                "name": "https://ubuntu.com/security/CVE-2023-2612"
            },
            {
                "url": "https://ubuntu.com/security/notices/USN-6122-1",
                "refsource": "MISC",
                "name": "https://ubuntu.com/security/notices/USN-6122-1"
            },
            {
                "url": "https://ubuntu.com/security/notices/USN-6123-1",
                "refsource": "MISC",
                "name": "https://ubuntu.com/security/notices/USN-6123-1"
            },
            {
                "url": "https://ubuntu.com/security/notices/USN-6124-1",
                "refsource": "MISC",
                "name": "https://ubuntu.com/security/notices/USN-6124-1"
            },
            {
                "url": "https://ubuntu.com/security/notices/USN-6127-1",
                "refsource": "MISC",
                "name": "https://ubuntu.com/security/notices/USN-6127-1"
            },
            {
                "url": "http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html",
                "refsource": "MISC",
                "name": "http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html"
            }
        ]
    },
    "credits": [
        {
            "lang": "en",
            "value": "Jean-Baptiste Cayrou"
        }
    ],
    "impact": {
        "cvss": [
            {
                "version": "3.1",
                "attackVector": "LOCAL",
                "attackComplexity": "LOW",
                "privilegesRequired": "HIGH",
                "userInteraction": "NONE",
                "scope": "UNCHANGED",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "availabilityImpact": "HIGH",
                "baseSeverity": "MEDIUM",
                "baseScore": 4.4,
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"
            }
        ]
    }
}