{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-43102",
        "ASSIGNER": "secteam@freebsd.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of UMTX_OP_SHM can lead to decreasing the reference count of the object representing the mapping too many times, causing it to be freed too early.\n\nA malicious code exercizing the UMTX_SHM_DESTROY sub-request in parallel can panic the kernel or enable further Use-After-Free attacks, potentially including code execution or Capsicum sandbox escape."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-416 Use After Free",
                        "cweId": "CWE-416"
                    }
                ]
            },
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-911 Improper Update of Reference Count",
                        "cweId": "CWE-911"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "FreeBSD",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "FreeBSD",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "14.1-RELEASE",
                                            "version_value": "p4"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "14.0-RELEASE",
                                            "version_value": "p10"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "13.3-RELEASE",
                                            "version_value": "p6"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://security.freebsd.org/advisories/FreeBSD-SA-24:14.umtx.asc",
                "refsource": "MISC",
                "name": "https://security.freebsd.org/advisories/FreeBSD-SA-24:14.umtx.asc"
            }
        ]
    },
    "credits": [
        {
            "lang": "en",
            "value": "Synacktiv"
        },
        {
            "lang": "en",
            "value": "The FreeBSD Foundation"
        },
        {
            "lang": "en",
            "value": "The Alpha-Omega Project"
        }
    ]
}