{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-0193",
        "ASSIGNER": "secalert@redhat.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFT_CHAIN object or NFT_OBJECT object, allowing a local unprivileged user with CAP_NET_ADMIN capability to escalate their privileges on the system."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Use After Free",
                        "cweId": "CWE-416"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Red Hat",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Red Hat Enterprise Linux 9",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "0:5.14.0-362.24.1.el9_3",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "0:5.14.0-362.24.1.el9_3",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "0:5.14.0-70.105.1.el9_0",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "0:5.14.0-70.105.1.rt21.177.el9_0",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "0:5.14.0-284.55.1.el9_2",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "0:5.14.0-284.55.1.rt14.340.el9_2",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "RHOL-5.8-RHEL-9",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v5.8.6-22",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v5.8.6-11",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v6.8.1-407",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v5.8.6-19",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v1.0.0-479",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v5.8.6-7",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v0.4.0-247",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v5.8.6-5",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v1.1.0-227",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v5.8.1-470",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v2.9.6-14",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v5.8.6-2",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v5.8.6-24",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v5.8.6-10",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v0.1.0-525",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v0.1.0-224",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "v0.28.1-56",
                                                        "lessThan": "*",
                                                        "versionType": "rpm",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Red Hat Enterprise Linux 6",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "defaultStatus": "unaffected"
                                            }
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Red Hat Enterprise Linux 7",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "defaultStatus": "unaffected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "defaultStatus": "unaffected"
                                            }
                                        }
                                    ]
                                }
                            },
                            {
                                "product_name": "Red Hat Enterprise Linux 8",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "defaultStatus": "unaffected"
                                            }
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "defaultStatus": "unaffected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://access.redhat.com/errata/RHSA-2024:1018",
                "refsource": "MISC",
                "name": "https://access.redhat.com/errata/RHSA-2024:1018"
            },
            {
                "url": "https://access.redhat.com/errata/RHSA-2024:1019",
                "refsource": "MISC",
                "name": "https://access.redhat.com/errata/RHSA-2024:1019"
            },
            {
                "url": "https://access.redhat.com/errata/RHSA-2024:1248",
                "refsource": "MISC",
                "name": "https://access.redhat.com/errata/RHSA-2024:1248"
            },
            {
                "url": "https://access.redhat.com/errata/RHSA-2024:2094",
                "refsource": "MISC",
                "name": "https://access.redhat.com/errata/RHSA-2024:2094"
            },
            {
                "url": "https://access.redhat.com/errata/RHSA-2024:4412",
                "refsource": "MISC",
                "name": "https://access.redhat.com/errata/RHSA-2024:4412"
            },
            {
                "url": "https://access.redhat.com/errata/RHSA-2024:4415",
                "refsource": "MISC",
                "name": "https://access.redhat.com/errata/RHSA-2024:4415"
            },
            {
                "url": "https://access.redhat.com/security/cve/CVE-2024-0193",
                "refsource": "MISC",
                "name": "https://access.redhat.com/security/cve/CVE-2024-0193"
            },
            {
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255653",
                "refsource": "MISC",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2255653"
            }
        ]
    },
    "work_around": [
        {
            "lang": "en",
            "value": "In order to trigger the issue, it requires the ability to create user/net namespaces.\n\nOn non-containerized deployments of Red Hat Enterprise Linux 8, you can disable user namespaces by setting user.max_user_namespaces to 0:\n\n# echo \"user.max_user_namespaces=0\" > /etc/sysctl.d/userns.conf\n# sysctl -p /etc/sysctl.d/userns.conf\n\nOn containerized deployments, such as Red Hat OpenShift Container Platform, do not use this mitigation as the functionality is needed to be enabled."
        }
    ],
    "impact": {
        "cvss": [
            {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
            }
        ]
    }
}