{
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    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2023-3812",
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "state": "PUBLISHED",
        "assignerShortName": "redhat",
        "dateReserved": "2023-07-20T13:02:44.826Z",
        "datePublished": "2023-07-24T15:19:21.817Z",
        "dateUpdated": "2024-09-13T18:23:19.887Z"
    },
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        "cna": {
            "title": "Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags",
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                        "content": {
                            "value": "Important",
                            "namespace": "https://access.redhat.com/security/updates/classification/"
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                        "type": "Red Hat severity rating"
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                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "HIGH",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "version": "3.1"
                    },
                    "format": "CVSS"
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            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system."
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