cvelist/2025/21xxx/CVE-2025-21742.json

{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2025-21742",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusbnet: ipheth: use static NDP16 location in URB\n\nOriginal code allowed for the start of NDP16 to be anywhere within the\nURB based on the `wNdpIndex` value in NTH16. Only the start position of\nNDP16 was checked, so it was possible for even the fixed-length part\nof NDP16 to extend past the end of URB, leading to an out-of-bounds\nread.\n\nOn iOS devices, the NDP16 header always directly follows NTH16. Rely on\nand check for this specific format.\n\nThis, along with NCM-specific minimal URB length check that already\nexists, will ensure that the fixed-length part of NDP16 plus a set\namount of DPEs fit within the URB.\n\nNote that this commit alone does not fully address the OoB read.\nThe limit on the amount of DPEs needs to be enforced separately."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Linux",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "a2d274c62e44b1995c170595db3865c6fe701226",
                                            "version_value": "8fb062178e1ce180e2cfdc9abc83a1b9fea381ca"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "6.5",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "6.5",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.6.78",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.12.14",
                                                        "lessThanOrEqual": "6.12.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.13.3",
                                                        "lessThanOrEqual": "6.13.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.14-rc1",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/8fb062178e1ce180e2cfdc9abc83a1b9fea381ca",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/8fb062178e1ce180e2cfdc9abc83a1b9fea381ca"
            },
            {
                "url": "https://git.kernel.org/stable/c/cf1ac7f7cf601ac31d1580559c002b5e37b733b7",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/cf1ac7f7cf601ac31d1580559c002b5e37b733b7"
            },
            {
                "url": "https://git.kernel.org/stable/c/2b619445dcb6dab97d8ed033fb57225aca1288c4",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/2b619445dcb6dab97d8ed033fb57225aca1288c4"
            },
            {
                "url": "https://git.kernel.org/stable/c/86586dcb75cb8fd062a518aca8ee667938b91efb",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/86586dcb75cb8fd062a518aca8ee667938b91efb"
            }
        ]
    },
    "generator": {
        "engine": "bippy-5f407fcff5a0"
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}