{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53219",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-09-15T14:19:21.845Z",
        "datePublished": "2025-09-15T14:21:47.459Z",
        "dateUpdated": "2026-05-11T19:40:34.034Z"
    },
    "containers": {
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            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:40:34.034Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: netup_unidvb: fix use-after-free at del_timer()\n\nWhen Universal DVB card is detaching, netup_unidvb_dma_fini()\nuses del_timer() to stop dma->timeout timer. But when timer\nhandler netup_unidvb_dma_timeout() is running, del_timer()\ncould not stop it. As a result, the use-after-free bug could\nhappen. The process is shown below:\n\n    (cleanup routine)          |        (timer routine)\n                               | mod_timer(&dev->tx_sim_timer, ..)\nnetup_unidvb_finidev()         | (wait a time)\n  netup_unidvb_dma_fini()      | netup_unidvb_dma_timeout()\n    del_timer(&dma->timeout);  |\n                               |   ndev->pci_dev->dev //USE\n\nFix by changing del_timer() to del_timer_sync()."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/media/pci/netup_unidvb/netup_unidvb_core.c"
                    ],
                    "versions": [
                        {
                            "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
                            "lessThan": "dd5c77814f290b353917df329f36de1472d47154",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
                            "lessThan": "90229e9ee957d4514425e4a4d82c50ab5d57ac4d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
                            "lessThan": "1550bcf2983ae1220cc8ab899a39a423fa7cb523",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
                            "lessThan": "f9982db735a8495eee14267cf193c806b957e942",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
                            "lessThan": "051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
                            "lessThan": "07821524f67bf920342bc84ae8b3dea2a315a89e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
                            "lessThan": "c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "52b1eaf4c59a3bbd07afbb4ab4f43418a807d02e",
                            "lessThan": "0f5bb36bf9b39a2a96e730bf4455095b50713f63",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/media/pci/netup_unidvb/netup_unidvb_core.c"
                    ],
                    "versions": [
                        {
                            "version": "4.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.316",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.284",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.244",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.181",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.113",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.30",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3.4",
                            "lessThanOrEqual": "6.3.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.4",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.3",
                                    "versionEndExcluding": "4.14.316"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.3",
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.3",
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.3",
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/dd5c77814f290b353917df329f36de1472d47154"
                },
                {
                    "url": "https://git.kernel.org/stable/c/90229e9ee957d4514425e4a4d82c50ab5d57ac4d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1550bcf2983ae1220cc8ab899a39a423fa7cb523"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f9982db735a8495eee14267cf193c806b957e942"
                },
                {
                    "url": "https://git.kernel.org/stable/c/051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/07821524f67bf920342bc84ae8b3dea2a315a89e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0f5bb36bf9b39a2a96e730bf4455095b50713f63"
                }
            ],
            "title": "media: netup_unidvb: fix use-after-free at del_timer()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 7.8,
                            "attackVector": "LOCAL",
                            "baseSeverity": "HIGH",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                            "integrityImpact": "HIGH",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "LOW",
                            "confidentialityImpact": "HIGH"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2023-53219",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2026-01-14T17:49:56.699110Z"
                            }
                        }
                    }
                ],
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "lang": "en",
                                "type": "CWE",
                                "cweId": "CWE-416",
                                "description": "CWE-416 Use After Free"
                            }
                        ]
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-01-14T17:52:58.312Z"
                }
            }
        ]
    }
}