cvelist/2022/35xxx/CVE-2022-35926.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-35926",
        "STATE": "PUBLIC",
        "TITLE": "Out-of-bounds read in IPv6 neighbor solicitation in Contiki-NG"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "contiki-ng",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 4.8"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "contiki-ng"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Contiki-NG is an open-source, cross-platform operating system for IoT devices. Because of insufficient validation of IPv6 neighbor discovery options in Contiki-NG, attackers can send neighbor solicitation packets that trigger an out-of-bounds read. The problem exists in the module os/net/ipv6/uip-nd6.c, where memory read operations from the main packet buffer, <code>uip_buf</code>, are not checked if they go out of bounds. In particular, this problem can occur when attempting to read the 2-byte option header and the Source Link-Layer Address Option (SLLAO). This attack requires ipv6 be enabled for the network. The problem has been patched in the develop branch of Contiki-NG. The upcoming 4.8 release of Contiki-NG will include the patch.Users unable to upgrade may apply the patch in Contiki-NG PR #1654."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-125: Out-of-bounds Read"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8",
                "refsource": "MISC",
                "url": "https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8"
            },
            {
                "name": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-4hpq-4f53-w386",
                "refsource": "CONFIRM",
                "url": "https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-4hpq-4f53-w386"
            },
            {
                "name": "https://github.com/contiki-ng/contiki-ng/pull/1654",
                "refsource": "MISC",
                "url": "https://github.com/contiki-ng/contiki-ng/pull/1654"
            },
            {
                "name": "https://github.com/contiki-ng/contiki-ng/pull/1654/commits/a4597001d50a04f4b9c78f323ba731e2f979802c",
                "refsource": "MISC",
                "url": "https://github.com/contiki-ng/contiki-ng/pull/1654/commits/a4597001d50a04f4b9c78f323ba731e2f979802c"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-4hpq-4f53-w386",
        "discovery": "UNKNOWN"
    }
}