Null pointer dereference when viewing a specially crafted email in Mutt >1.5.2 <2.2.12
[
    {
        "id": "CVE-2023-4874-4ad63683",
        "deprecated": false,
        "signature_type": "Line",
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "311435706394840361027034278408384120933",
                "184811427006018352195317011662055852175",
                "197147681907748699508461669010673632797",
                "115638657409880351838100482405080790463"
            ]
        },
        "source": "https://gitlab.com/muttmua/mutt@a4752eb0ae0a521eec02e59e51ae5daedf74fda0",
        "target": {
            "file": "sendlib.c"
        }
    },
    {
        "id": "CVE-2023-4874-c9f53cf1",
        "deprecated": false,
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "length": 1639.0,
            "function_hash": "53806998968969863017686505986342888599"
        },
        "source": "https://gitlab.com/muttmua/mutt@452ee330e094bfc7c9a68555e5152b1826534555",
        "target": {
            "function": "rfc2047_decode_word",
            "file": "rfc2047.c"
        }
    },
    {
        "id": "CVE-2023-4874-ea8dac3d",
        "deprecated": false,
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "length": 1537.0,
            "function_hash": "58318663789131637153077802184449394055"
        },
        "source": "https://gitlab.com/muttmua/mutt@a4752eb0ae0a521eec02e59e51ae5daedf74fda0",
        "target": {
            "function": "write_one_header",
            "file": "sendlib.c"
        }
    },
    {
        "id": "CVE-2023-4874-fdb77424",
        "deprecated": false,
        "signature_type": "Line",
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "143811940606252416423363556841390520226",
                "267072045718752787410581380108000115876",
                "270087326784847198658990605271372029882",
                "321764223102516675061789209223709827070"
            ]
        },
        "source": "https://gitlab.com/muttmua/mutt@452ee330e094bfc7c9a68555e5152b1826534555",
        "target": {
            "file": "rfc2047.c"
        }
    }
]