{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53000",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-03-27T16:40:15.742Z",
        "datePublished": "2025-03-27T16:43:33.208Z",
        "dateUpdated": "2026-05-11T19:36:40.802Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:36:40.802Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetlink: prevent potential spectre v1 gadgets\n\nMost netlink attributes are parsed and validated from\n__nla_validate_parse() or validate_nla()\n\n    u16 type = nla_type(nla);\n\n    if (type == 0 || type > maxtype) {\n        /* error or continue */\n    }\n\n@type is then used as an array index and can be used\nas a Spectre v1 gadget.\n\narray_index_nospec() can be used to prevent leaking\ncontent of kernel memory to malicious users.\n\nThis should take care of vast majority of netlink uses,\nbut an audit is needed to take care of others where\nvalidation is not yet centralized in core netlink functions."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "lib/nlattr.c"
                    ],
                    "versions": [
                        {
                            "version": "bfa83a9e03cf8d501c6272999843470afecb32ed",
                            "lessThan": "3e5082b1c66c7783fbcd79b5b178573230e528ff",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bfa83a9e03cf8d501c6272999843470afecb32ed",
                            "lessThan": "539ca5dcbc91134bbe2c45677811c31d8b030d2d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bfa83a9e03cf8d501c6272999843470afecb32ed",
                            "lessThan": "41b74e95f297ac360ca7ed6bf200100717cb6c45",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bfa83a9e03cf8d501c6272999843470afecb32ed",
                            "lessThan": "992e4ff7116a77968039277b5d6aaa535c2f2184",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bfa83a9e03cf8d501c6272999843470afecb32ed",
                            "lessThan": "f0950402e8c76e7dcb08563f1b4e8000fbc62455",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "lib/nlattr.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.231",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.166",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.91",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.9",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.15",
                                    "versionEndExcluding": "5.4.231"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.15",
                                    "versionEndExcluding": "5.10.166"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.15",
                                    "versionEndExcluding": "5.15.91"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.15",
                                    "versionEndExcluding": "6.1.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.15",
                                    "versionEndExcluding": "6.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/3e5082b1c66c7783fbcd79b5b178573230e528ff"
                },
                {
                    "url": "https://git.kernel.org/stable/c/539ca5dcbc91134bbe2c45677811c31d8b030d2d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/41b74e95f297ac360ca7ed6bf200100717cb6c45"
                },
                {
                    "url": "https://git.kernel.org/stable/c/992e4ff7116a77968039277b5d6aaa535c2f2184"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f0950402e8c76e7dcb08563f1b4e8000fbc62455"
                }
            ],
            "title": "netlink: prevent potential spectre v1 gadgets",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}