{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2023-39540",
        "ASSIGNER": "talos-cna@cisco.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted network packet can lead to an out-of-bounds read. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability concerns a denial of service within the parsing an IPv4 ICMP packet."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-126: Buffer Over-read",
                        "cweId": "CWE-126"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Silicon Labs",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Gecko Platform",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "4.3.1.0"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                },
                {
                    "vendor_name": "Weston Embedded",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "uC-TCP-IP",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "v3.06.01"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1828",
                "refsource": "MISC",
                "name": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1828"
            }
        ]
    },
    "credits": [
        {
            "lang": "en",
            "value": "Discovered by Francesco Benvenuto and Kelly Patterson of Cisco Talos."
        }
    ],
    "impact": {
        "cvss": [
            {
                "version": "3.1",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "attackVector": "NETWORK",
                "attackComplexity": "HIGH",
                "privilegesRequired": "NONE",
                "userInteraction": "NONE",
                "scope": "UNCHANGED",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "availabilityImpact": "HIGH",
                "baseScore": 5.9,
                "baseSeverity": "MEDIUM"
            }
        ]
    }
}