{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-3652",
        "ASSIGNER": "security@libreswan.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without specifying an esp= line. When the peer requests AES-GMAC, libreswan's default proposal handler causes an assertion failure and crashes and restarts. IKEv2 connections are not affected."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "IKEv1 with default AH/ESP configuration can cause libreswan to abort and restart"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "The Libreswan Project (www.libreswan.org)",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "libreswan",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "3.22",
                                                        "status": "affected",
                                                        "lessThanOrEqual": "4.14",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "5.0",
                                                        "status": "unaffected"
                                                    }
                                                ],
                                                "defaultStatus": "unaffected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://libreswan.org/security/CVE-2024-3652",
                "refsource": "MISC",
                "name": "https://libreswan.org/security/CVE-2024-3652"
            },
            {
                "url": "http://www.openwall.com/lists/oss-security/2024/04/18/2",
                "refsource": "MISC",
                "name": "http://www.openwall.com/lists/oss-security/2024/04/18/2"
            }
        ]
    },
    "configuration": [
        {
            "lang": "en",
            "value": "The vulnerability can only be triggered for connections with ikev2=no that do not specify an esp= option."
        }
    ],
    "work_around": [
        {
            "lang": "en",
            "value": "As a workaround, adding an esp= line to all IKEv1 connections works around the issue. An example covering most common default configurations would be: esp=aes-sha2_512,aes-sha1,aes-sha2_256,aes-md5,3des-sha1,3des-md5. "
        }
    ],
    "solution": [
        {
            "lang": "en",
            "value": "This issue is fixed in 4.15 and all later versions."
        }
    ],
    "credits": [
        {
            "lang": "en",
            "value": "github user X1AOxiang"
        }
    ]
}