{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2023-28116",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2023-03-10T18:34:29.228Z",
        "datePublished": "2023-03-17T21:22:54.703Z",
        "dateUpdated": "2025-02-25T14:53:03.165Z"
    },
    "containers": {
        "cna": {
            "title": "Buffer overflow in L2CAP due to misconfigured MTU",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-120",
                            "lang": "en",
                            "description": "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 8.1,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m737-4vx6-pfqp",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m737-4vx6-pfqp"
                },
                {
                    "name": "https://github.com/contiki-ng/contiki-ng/pull/2398",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/contiki-ng/contiki-ng/pull/2398"
                }
            ],
            "affected": [
                {
                    "vendor": "contiki-ng",
                    "product": "contiki-ng",
                    "versions": [
                        {
                            "version": "<= 4.8",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2023-03-17T21:22:54.703Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Contiki-NG is an open-source, cross-platform operating system for internet of things (IoT) devices. In versions 4.8 and prior, an out-of-bounds write can occur in the BLE L2CAP module of the Contiki-NG operating system.  The network stack of Contiki-NG uses a global buffer (packetbuf) for processing of packets, with the size of PACKETBUF_SIZE. In particular, when using the BLE L2CAP module with the default configuration, the PACKETBUF_SIZE value becomes larger then the actual size of the packetbuf.  When large packets are processed by the L2CAP module, a buffer overflow can therefore occur when copying the packet data to the packetbuf. The vulnerability has been patched in the \"develop\" branch of Contiki-NG, and will be included in release 4.9. The problem can be worked around by applying the patch manually."
                }
            ],
            "source": {
                "advisory": "GHSA-m737-4vx6-pfqp",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-02T12:30:24.192Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "name": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m737-4vx6-pfqp",
                        "tags": [
                            "x_refsource_CONFIRM",
                            "x_transferred"
                        ],
                        "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-m737-4vx6-pfqp"
                    },
                    {
                        "name": "https://github.com/contiki-ng/contiki-ng/pull/2398",
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://github.com/contiki-ng/contiki-ng/pull/2398"
                    }
                ]
            },
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-02-25T14:29:12.643576Z",
                                "id": "CVE-2023-28116",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-02-25T14:53:03.165Z"
                }
            }
        ]
    }
}